7th Grade Geometry Unit Review/Academic Scrimmage

What is the surface area of this rectangular prism?

• 195 in²

• 19.5 in²

• 30 in²

• 229 in²

Which measure would be best for finding the amount of cereal in a box?

• volume

• surface area

• area

• perimeter

Which measure would be best for measuring the amount of wrapping on a present?

• volume

• surface area

• area

• perimeter

In the figure, the two triangular faces of the prism are right triangles with sides of length 3 cm, 4 cm, and 5 cm. The other three faces are rectangles. What is the surface of the prism?

• 72 cm²

• 84 cm²

• 96 cm²

• 108 cm²

What is the volume of this right triangular prism?

• 165 ft³

• 330 ft³

• 1073 ft³

• 2145 ft³

Tags

CCSS.7.G.B.6

A triangle has an area of 15 square feet. The height is 8 feet. What is the length of the base?

TIP: write the formula for area of triangle, then substitute then solve.

• 60 ft.

• 1.88 ft

• 120 ft

• 3.75 ft

Find the area of the circle to the nearest tenth. Use 3.14 for π

• 15.2 ft²

• 60.8 ft²

• 47.7 ft²

• 13.8 ft²

∠M and ∠N and are complementary. If m∠M = 29.3°, what is m∠N?

• m∠N = 150.7°

• m∠N = 29.3°

• m∠N = 60.7°

• m∠N = 119.3°

Lines l and m intersect, as shown in the diagram below. The lines form several pairs of vertical angles. What is the value of x?

• x = 16

• x = 43.5

• x = 32

• x = 71

A circular lampshade with a diameter of 14 inches has a length of wire that goes around it exactly one time. How many inches of wire are needed to go around the lampshade one time? Answer in terms of pi.

• 7π

• 14π

• 49π

• 196π