QUIZ REVIEW Interior Angle Measures

Slides:

Advertisements

Similar presentations

Finding Surface Area Step 1: Flatten the 3-D figure A rectangular prism will flatten to 6 rectangles. Depending on the dimensions of the 3-D figure, you.

Advertisements

Geometry 5 Level 1. Interior angles in a triangle.

Triangles, Quadrilaterals, Nets, Prisms & Composite Polygons

Total Surface Area. Rectangular Prism 6 “ 4 “ 5 “ What is the Total Surface Area?

Bell Work Find the surface area of each figure.

Jeopardy Directions In Jeopardy, remember the answer is in the form of a question. Select a question by clicking on it. After reading the question, click.

PERIMETER GRADE 3. Hello, How are you doing? Today, we are going to start a new lesson on.

Lateral Area, Surface Area, and Notes

Congruence and Similarity

EXAMPLE 2 Use a ratio to find a dimension SOLUTION Painting You are planning to paint a mural on a rectangular wall. You know that the perimeter of the.

Copyright©amberpasillas2010. Remove all other thoughts from your mind. Pay close attention. Try all the examples. Ignore all other distractions.

Polygons, Circles, and Solids

EXAMPLE 1 Use the net of a prism Find the surface area of a rectangular prism with height 2 centimeters, length 5 centimeters, and width 6 centimeters.

Volume and Surface Area 7 th Grade More about Geometry Unit.

You will learn to solve problems that involve the perimeters and areas of rectangles and parallelograms.

Surface Area Return to table of contents.

A cube has a total surface area of 24 cm2

Similar Triangles and Polygons

Measurement Jeopardy CirclesPerimeter Area 3-D Surface Area And Volume $100 $200 $300 $400 $500 $100 $200 $300 $400 $500.

Holt CA Course Three-Dimensional Figures Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

1.Tim is painting his living room with a new coffee colored Paint. There are 3 walls in the living room that measure 15 ft by 8 ft each and a fourth wall.

The area of a rectangle equals its length times the width (base times the height). A = length x width = lw or A = base x height = bh Area of a Rectangle.

Surface Area of Prisms Unit 5, Lesson 2. What is a Prism? Definition: –A three dimensional figure with 2 congruent polygon bases and rectangular sides.

Bell Ringer Calculate the perimeter of the figure. 2.Calculate the area of the figure.

Warm Up 1.) Find the area of the hexagon.

Similar Triangles.  To solve a proportions  Cross multiply  Solve.

Shapes and Designs Jeopardy Names of Polygons

Chapter 10 Test Formula Review.  Find the circumference of a circle with a diameter of 10. Identify the formula needed for the following questions.

Changing Dimensions What’s the effect on Perimeter and Area??

Math More with Formulas 1. 2 Perimeter of a rectangle.

Area & Perimeter. SHAPE OVERVIEW Rectangle Triangle Hexagon Trapezoid Square Parallelogram Pentagon Circle.

Ratio and Proportion 7-1.

How much cardboard does it take to make a cereal box? Have you ever wondered?

Unit 6 Part 1 Using Proportions, Similar Polygons, and Ratios.

EXAMPLE 2 Use a ratio to find a dimension SOLUTION Painting You are planning to paint a mural on a rectangular wall. You know that the perimeter of the.

EXAMPLE 1 Finding Area and Perimeter of a Triangle Find the area and perimeter of the triangle. A = bh 1 2 P = a + b + c = (14) (12) 1 2 =

Practice with Perimeter & Area

Break into Simpler Parts

Math 8 Unit 8 Polygons and Measurement Strand 4: Concept 4 Measurement Strand 4: Concept 1 Geometric Properties PO 2. Draw three-dimensional figures by.

A) Find the measure of

The length of a rectangle is twice the width. The perimeter is 72 inches. Find the length and the width of the rectangle.

Let’s start in the beginning… Before you can do surface area or volume, you have to know the following formulas. CircleA = π r² C = πd RectangleA =

Answer the question and advance to the next slide for your answer.

Chapter 10 Notes Area: Parallelograms Area of a figure is the number of square units it encloses. The stuff inside of a figure. Area of a Parallelogram:

Similarity. Do Now What is the volume of the prism below: 3 in 2 in 7 in.

Surface Area of a 3-D solid. Definition Surface Area – is the total number of unit squares used to cover a 3-D surface.

SURFACE AREA PRISMS AND CYLINDERS NET 2 NET 3 NET 4.

Name: ___________________ Per:_______ Geometry12-13, MP5 Quiz Object Show work for credit. 6. Find the area of the triangle below. Leave answer.

Triangles, Quadrilaterals, Nets, Prisms & Composite Polygons

How do you Calculate the Surface Area of Prisms & Cylinders?

Surface Area of a Space Figure

PolyGon Warmup 4/12/16.

C 5 4 A B 6 Z 10 8 X Y 12.

3rd Grade Math Module 7 Lesson 14

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Objective: To find the perimeters and areas of similar figures.

Solid Figures 7th Grade Standard

11.1 Angles Measures in a Polygon

Lateral Area, Surface Area, and Notes

Warm UP Name the base, Name the figure

12.2 Surface Area of Prisms & Cylinders

Warm Up Problem Which of the following expressions is equivalent to 6x + 24? A) 3(x + 12) B) 6(x – 4) C) 6(x + 4) D) x(6 + 4)

Ratio & Proportions Practice

Ratio Ratio – a comparison of numbers A ratio can be written 3 ways:

Warm Up Problem Which of the following statements is true for the equation 6x = 78? A) To find the value of x, subtract 6 from 78. B) To find the value.

7.G.5 Surface Area of a prism

Lateral Area, Surface Area, and Notes

Area & Perimeter.

Volume of Prisms, Cross Sections and Scale Factors

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Presentation transcript:

QUIZ REVIEW Interior Angle Measures Changes in Dimension of Perimeter and Area Surface Area

1 Using (n-2)180, find the sum of the interior angle measures of the given polygon: hexagon Show all work.

ANSWER: hexagon – 6 sides (6-2)180 4(180) 720⁰

2 Suppose the side lengths of the parallelogram below are multiplied by ⅓. What effect would this have on the perimeter? Justify your answer.

ANSWER: Original Perimeter: 12 + 9 + 12 + 9 = 42 inches New Perimeter: 4 + 3 + 4 + 3 = 14 inches Because the sides are ⅓ times the original, then the new perimeter is ⅓ times the original perimeter.

3 Find the missing angle measure for the triangle to the right. Show all work.

ANSWER: 50 + 30 = 80 180 – 80 = 100 100⁰

4 The measures of the angles of triangle XYZ are in the ratio 3:3:6. What are the measures of the angles? Show all work.

45⁰ 90⁰ work: ANSWER: Ratio: 3:3:6 Add 3 + 3 + 6 3 + 3 + 6 = 12 180 ÷ 12 (to find one measure) One measure is 15⁰ 3(15) = 45⁰ 6(15) = 90⁰ ANSWER: 45⁰ 90⁰

5 Find the surface area of the rectangular prism. front and back top and bottom two sides

SA = 800 in2 ANSWER: SURFACE AREA: Top: 15 • 10 = 150 Bottom: 15 • 10 = 150 Front: 15 • 10 = 150 Back: 15 • 10 = 150 Side 1: 10 •10 = 100 Side 2: 10 •10 = 100 SA = 800 in2

6 A rectangle measures 4 feet by 8 feet. Suppose the side lengths are multiplied by 2.5. What effect would this have on the area? Justify your answer.

ANSWER: Original Area: New Area: 4  8 = 32 feet2 10  20 = 200 feet2 Because the side lengths increased 2.5 times, the new area is 2.52 = 2.5  2.5 OR 6.25 times larger than the original area.

7 The soccer ball below consists of repeating pentagons and hexagons. Find the measure of one interior angle of a pentagon. Use (n-2)180. Show all work.

ANSWER: (5 – 2)180 (3)180 540 ⁰ 540 ÷ 5 (to find one angle measure) 108⁰

8 Find the missing angle measure for the triangle to the right. Show all work.

ANSWER: 75 + 60 = 135 180 – 135 = 45 45⁰

9 CARPENTRY Bryan is sanding a set of speaker boxes that he built for his room. What is the surface area of each box? SHOW ALL WORK

Surface Area: Front: 1.1 • 4.6 = 5.06 Back: 1.1 • 4.6 = 5.06 ANSWER: Surface Area: Front: 1.1 • 4.6 = 5.06 Back: 1.1 • 4.6 = 5.06 Top: 1.1 • 2.2 = 2.42 Bottom: 1.1 • 2.2 = 2.42 Side 1: 4.6 • 2.2 = 10.12 Side 2: 4.6 • 2.2 = 10.12 SA = 35.2 ft2

10 The measures of the angles of triangle RST are in the ratio 2:4:9. What are the measures of the angles? Show all work.

24⁰ 48⁰ 108⁰ work: ANSWER: Ratio: 2:4:9 Add 2 + 4 + 9 2 + 4 + 9 = 15 180 ÷ 15 (to find one measure) One measure is 12⁰ 2(12) = 24⁰ 4(12) = 48⁰ 9(12) = 108⁰ ANSWER: 24⁰ 48⁰ 108⁰