Scales Triangles/A ngles Cross Sections Circles Measurements

Question SG #1 The scale drawing of a swimming pool is shown below. The drawing used a scale of 1 inch = 3 ft. What is the perimeter of the actual swimming pool? 6 in 4 in

Answer 1 – feet

Question SG #2 Taylor made a scale drawing of her room using a scale z= ½ inch = 1 foot. On the drawing, the length of the room is z = 3 inches and the width is 4 ½ inches. What is the area of Taylor’s actual room?

Answer 1 – square feet

Question SG # 4 Sarah made a scale drawing of a dinosaur. She made the height of the dinosaur 4 inches The actual height of the dinosaur is 20 feet What scale did Sarah use for her drawing?

Answer 1 – 30 1 inch = 5 feet

Question SG # 3 A map has a scale of 1 cm = 10 miles. If a county is 80 miles wide, how wide is the county on the map?

Answer 1 – 40 8 cm

Question SG # 6 Ms. Williams had each student take 3 pencils and create a triangle with them. Roberto has 3 pencils that measure 12 cm, 5 cm, and 7 cm. How many triangles can Roberto create with his 3 pencils? Hint – look at the triangles page from chapter 8

Answer 2 – 10 None The two smaller sides must add up to be greater then the largest side

Question SG #5 An isosceles triangles has an angles that measures 80 degrees. Which could be the measure of another angle in the triangle?

Answer 2 – degrees

Question SG # 7 Amanda is using colored sticks to make triangle for a class project. Each colored stick has a different measurement as shown in the table below. Which combination of sticks could be used to create a triangle? Red – 2 Blue – 3 Yellow – 4 Green – 6 Brown – 8

Answer 2 – 30 Will vary! Red – 2 Blue – 3 Yellow – 4 Green – 6 Brown – 8

Question SG # 14 In the figure below, < JKM and < MKN are complementary What is the measure of <NKP? 5040 J M N P L K

Answer 2 – degrees

Question What does is mean to be perpendicular and parallel?

Answer 3 – 10 Creates 90 degree angle Never touch!

Question SG # 8 A plane intersects a rectangular prism perpendicular to its base. The plane forms a cross section. What is the shape of the cross section?

Answer 3 – 20 Rectangle

Question SG # 10 A cylinder is sliced in half. The diagram shows how the solid is sliced. What is the shape of the resulting cross section?

Answer 3 – 30 Rectangle

Question SG # 9 A plane intersects a triangular pyramid parallel to the base. The plane forms a cross section. What is the shape of the cross section?

Answer 3 – 40 Triangle

Question SG # 12 Jalen is making a circular pizza with a circumference of 38 inches. What is the approximate radius of Jalen’s pizza? (Use 3.14 for pi, round to the nearest integer)

Answer 4 – 10 Radius is about 6 inches

Question SG # 11 A circle has a circumference of about 25 inches. What is the approximate measure of the diameter? (Use 3.14 for pi, and round to the nearest integer)

Answer 4 – 20 The diameter is about 8 inches

Question SG #13 A circle has a diameter of 8 cm. What is the approximate area of the circle? (Use 3.14 for pi, round to the nearest integer)

Answer 4 – 30 About 50 square cm

Question SG # 21 Each block on the graph represents one unit. What is the approximate area of the circle? (Use 3.14 for pi, round your answer to the nearest whole number)

Answer 4 – square units

Question SG # 17 What is the surface area of the triangular prism?

Answer 5 – square feet

Question SG # 16 The larger of two supplementary angles is 40 degrees more than the smaller angle. What is the degree measure of the larger angle?

Answer 5 – degrees

Question SG # 18 John will paint the four walls of his rectangular basement. The basement measures 9 feet long, 14 feet wide, and 7 feet high and has no windows. The door into the room measures 2 feet by 8 feet and will not be painted. How many square feet of wall will John paint?

Answer 5 – square feet

Question SG # 19 A cardboard box is in the shape of a rectangular prism. It has a length of 3.2 m, a width of 4.1 m, and a height of 0.5 m. The volume of the box is how many cubic meters?

Answer 5 – cubic meters