Unit 7 Exam

A square pyramid is sliced parallel to the base and halfway up the pyramid. Which of these describes the cross section?

• A square smaller than the base

• A quadrilateral that is not a square

• A square the same size as the base

• A triangle with a height the same as the pyramid

Tags

CCSS.7.G.A.3

Is it possible to construct a triangle with the following conditions?

A triangle with side lengths 4 cm, 5 cm, and 15 cm

• Yes

• No

Answer explanation

15 cm is far too long

Tags

CCSS.7.G.A.2

Does this describe a unique polygon?

A quadrilateral with each side length 5 cm

• Yes

• No

Answer explanation

it could be a square or a rhombus of many different angles

Here is a triangular prism.

What is the volume of the prism, in cubic centimeters?

Record the number only (no units)

Answer explanation

V=(area of base) x (height)

The triangle is the base of the prism.

The height found in the back triangle (4 cm) is needed to find the area of the base.

Area of a triangle is (1/2)x(base)x(height)

The height of the prism is the 10 cm distance between the two triangles.

Tags

CCSS.7.G.B.6

What is the value of x?

Give a number only (no degree symbol)

Tags

CCSS.7.G.B.5

What is the value of y?

Give a number only (no degree symbol)

Tags

CCSS.7.G.B.5

Find then measurement of the missing angle B.

• 90

• 44

• 180

• 136

Tags

CCSS.7.G.B.5

Calculate the volume of the rectangular prism.

• 298

• 380

• 289

• 308

Tags

CCSS.7.G.B.6

Are the angles complementary or supplementary

• Supplementary

• Complementary

Tags

CCSS.7.G.B.5

Calculate the surface area of the triangular prism.

• 21.6

• 16

• 29.6

• 18.8

Tags

CCSS.7.G.B.6