7th grade Geometry Vocab

The red portion of this triangular prism is a....

• face

• vertex

• edge

• surface area

Answer explanation

Face = Flat side

Tags

CCSS.6.G.A.4

To know how much cardboard I'd need to make a triangular prism box like this, I'd need to calculate the....

• volume

• surface area

• perimeter

• cross section

Answer explanation

Surface area is the total space that covers the outside of a 3-D figure.

Tags

CCSS.7.G.B.6

The top point of this pryamid is called a ...

• cross section

• face

• edge

• vertex

Tags

CCSS.7.G.A.3

To know how much sand it takes to fill the inside of this pyramid I'd calculate the...

• vertical angles

• adjacent angles

• volume

• surface area

Answer explanation

Volume is the amount of space that fills a 3-D figure.

Tags

CCSS.7.G.B.6

Each angle in this triangle is...

• acute

• right

• obtuse

• straight

Answer explanation

Acute angle are less than 90 degrees.

Tags

CCSS.7.G.A.2

The ___________ of the red triangle is 34 cm.

• surface area

• volume

• area

• perimeter

Answer explanation

Perimeter is the total distance around a 2-D figure.

Tags

CCSS.7.G.B.6

What is the AREA of this triangle?

• 32 cm

• 48 sq cm

• 60 sq cm.

• 96 sq cm

Answer explanation

For a triangle, A = 1/2bh.

Tags

CCSS.7.G.B.6

When I fold a piece of paper to make a box, each fold line is called a.....

• vertical angle

• vertex

• edge

• face

Tags

CCSS.6.G.A.2

CCSS.6.G.A.4

These two angles show a pair of _____________ angles.

• complementary

• supplementary

• vertical

• right

Answer explanation

The angles put together form one right angle, but not a pair of right angles.

They are complementary because put together they add up to 90 degrees.

Tags

CCSS.7.G.B.5

These two angles are not....

• complementary

• acute

• adjacent

Answer explanation

Adjacent angles are Attached.