Rounding and FDPFractionsPercentages and Ratio 54301 (2 s.f.) 9.745 (1 s.f.) 99.892 (3 s.f.) Divide £96 into the ratio 3:5. Simplifying and IndicesEquationsBrackets.

Slides:



Advertisements
Similar presentations
1.6 – Two-Dimensional Figures
Advertisements

The Polygon Angle-Sum Theorems
Chapter 6 Quadrilaterals.
How do I find the surface area and volume of a sphere?
6.1 Polygons Textbook page 303. Definitions A polygon is a plane figure that is formed by three or more segments called sides. (a closed, sided figure)
Lesson 8-1 Angles of Polygons Theorem 8.1 Interior Angle Sum Theorem If a convex polygon has n sides and S is the sum of the measures of its interior angles,
Find the sum of the interior angles of a (an): 180(10 – 2) = 1440˚ decagon.
Number of sidesName of polygon 3triangle 4quadrilateral 5pentagon 6hexagon 7heptagon 8octagon 9nonagon 10decagon A polygon is a shape enclosed by straight.
6-1 The Polygon Angle-Sum Theorems
6-1 The Polygon Angle-Sum Theorems
Measurement Jeopardy CirclesPerimeter Area 3-D Surface Area And Volume $100 $200 $300 $400 $500 $100 $200 $300 $400 $500.
Ms. King’s Little Book of Geometry Notes Period ___.
8.1.1 Find Angle Measures in Quadrilaterals Chapter 8: Quadrilaterals.
© T Madas
Polygon Angles. Naming by # of sides. Polygons have specific names based on the number of sides they have: 3 – Triangle 4 – Quadrilateral 5 – Pentagon.
ANGLES OF POLYGONS SPI SPI Identify, describe and/or apply the relationships and theorems involving different types of triangles, quadrilaterals.
Fill in the number of sides Polygon NameNumber of Sides Triangle Heptagon Nonagon Hexagon Pentagon Dodecagon Quadrilateral Decagon Octagon
1.6 Classify Polygons. Identifying Polygons Formed by three or more line segments called sides. It is not open. The sides do not cross. No curves. POLYGONS.
Do Now ChalkUp “Quadrilateral Review”. 3/17/ C Polygons.
7.3 Formulas Involving Polygons. Before We Begin.
Spark Plug Write 3 examples of a triangle you see in the room. Write 3 examples of a circle you see in the classroom. Write 3 examples of a rectangle you.
Geometry CirclesTrianglesShapesVocabularyTheorems
Ms. King’s Little Book of Geometry Notes
SPI I CAN identify parts of a circle. I CAN find the circumference and area of a circle.
10-7 Surface Areas and Volumes of Spheres Two Theorems.
Lesson 1 – 6 Two-Dimensional Figures
5.1 Polygon Sum Conjecture
8.2 Angles in Polygons Textbook pg 417. Interior and Exterior Angles interior angles exterior angle.
Angles of Polygons Find the sum of the measures of the interior angles of a polygon Find the sum of the measures of the exterior angles of a This scallop.
Geometry. 3 sides 4 sides 5 sides 6 sides 8 sides 9 sides 10 sides 12 sides triangle quadrilateral pentagon hexagon octagon nonagon decagon dodecagon.
© T Madas. Find the mean percentage mark of 37%, 42%, 68%, 55% and 39%. Find of Find 7% of 675. Find the area of a triangle with base of 1.25.
1-6 Classify Polygons.
10.3 and 10.5 Areas of Regular Polygons & Trigonometry and Area.
Review The answers are on the last slide to check when you’re done.
Chapter 11 Review Classwork Answers on last slide.
Objectives To identify and name polygons To find the sum of the measures of interior and exterior angles of convex and regular polygons To solve problems.
11.2 and 11.4: Prisms and Cylinders
What size is an interior angle in a regular octagon? a) 78°b) 102° c) 135°d) 45°
Interior angles of polygons This is just one of the six interior angles of this polygon.
11.4 – Circumference and Arc Length. Circumference: C =  dC = 2  r Length around a circle.
Ms. King’s Little Book of Geometry Notes Period ___.
Objectives(2): Students will be able to find the sum of measures of the interior angles of a polygon. Students will be able to find the sum of the measures.
Section 11.6: Areas of Regular Polygons Definitions – Given a regular polygon inscribed in a circle, the center and radius of the polygon is the center.
8 th Grade Math POLYGONS. A polygon is a plane figure with at least three straight sides and angles, and typically five or more. WHAT IS A POLYGON?
Essential Question – How can I find angle measures in polygons without using a protractor?
Regular Polygons radius – the distance from the center to a vertex We can center any regular polygon inside of a circle: Regular polygons: -all sides.
Polygons Mr Red is going to walk around the outside of the polygon. The black arrow shows the way he is facing as he walks.
Geometry – Unit 10/11 $100 Area of Reg. Polygons Circles and Arcs Surface Area and Volume Wild Card $200 $300 $400 $500 $100 $200 $300 $400 $500 $100.
Interior Angle Sum = ( n – 2 )( 180° ) Find the interior angle sum of each polygon. ( 4 – 2 ) 180°= ( 2 ) 180°= 360° ( 6 – 2 ) 180°= ( 4 ) 180°= 720° 1)
Polygon Closed plane figure with at least three sides The sides intersect only at their endpoints No adjacent sides are collinear To name a polygon –Start.
Interior angles of polygons
The super shape quiz.
Polygons – Measurements of Angles
Polygons 3 triangle 8 octagon 4 quadrilateral 9 nonagon pentagon 10
Interior angles of polygons
Y8 Polygon Workbook.
Interior and Exterior angles
Lesson 12.3 Angles and Polygons
Angle Relationships in Polygons
Interior and Exterior Angles
Classify each quadrilateral below with its best name.
ANGLES OF POLYGONS.
ROTATIONS (TURN OR SPIN)
Classify Polygons Name: ____________________________________
Math Humor Q: What type of figure is like a lost parrot?
Pretest Lessons # Questions.
The Polygon Angle-Sum Theorem
Angle Measures of Polygons
To Start: 12 Points Find the following for a circle with radius 5 cm. Leave your answer in terms of π! Diameter = ________ Circumference = ________ Area.
Section 6.1 Polygons.
Presentation transcript:

Rounding and FDPFractionsPercentages and Ratio (2 s.f.) (1 s.f.) (3 s.f.) Divide £96 into the ratio 3:5. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of a hexagon? A shop offers £8 off a t-shirt normally costing £40. What percentage discount is this? 5cm 4cm

Rounding and FDPFractionsPercentages and Ratio (2 s.f.) (1 s.f.) (3 s.f.) Divide £144 into the ratio 7:5. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of a decagon? Find the area and circumference of this circle, leaving your answer in terms of pi. A shop offers £6 off a t-shirt normally costing £24. What percentage discount is this? 12cm 9cm

Rounding and FDPFractionsPercentages and Ratio (2 s.f.) 8.023(1 s.f.) (3 s.f.) Divide £108 into the ratio 4:5. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of a pentagon? Find the area of a circle with radius 7cm, leaving your answer in terms of pi. A shop offers £6 off a t-shirt normally costing £40. What percentage discount is this? 5cm 12cm

Rounding and FDPFractionsPercentages and Ratio 56.54(2 s.f.) (1 s.f.) (3 s.f.) Divide £99 into the ratio 7:4. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of an octagon? Find the area of this semi circle, leaving your answer in terms of pi. A shop offers £4 off a t-shirt normally costing £32. What percentage discount is this? 10cm 6cm

Rounding and FDPFractionsPercentages and Ratio 3548(2 s.f.) 6545(1 s.f.) 5.545(3 s.f.) Divide £100 into the ratio 1:7. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of a dodecagon? Find the volume and surface area of this cuboid. A shop offers £8 off a t-shirt normally costing £32. What percentage discount is this? 3cm 4cm

Rounding and FDPFractionsPercentages and Ratio (2 s.f.) 6.65(1 s.f.) (3 s.f.) Divide £99 into the ratio 5:4. Simplifying and IndicesEquationsBrackets ExpandFactorise AnglesArea and VolumePythagoras’ Theorem What is the size of the interior angle of a nonagon? A shop offers £10 off a t-shirt normally costing £25. What percentage discount is this? 20cm 12cm