Basic Geometry Formulas

If the diameter of a circle is 12 inches, what is the radius?

• 144 in.²

• 24 in.

• 36 in.

• 6 in.

Tags

CCSS.7.G.B.4

Find the perimeter of a rectangle when length is 7 cm and width is 4.5 cm.

• 23 cm

• 31,5 cn

• 23 cm ²

• 31.5 cm ²

Tags

CCSS.4.MD.A.3

What is the area of a circle with a radius of 5 cm?

• 31.4 cm ²

• 78.5 cm ²

• 15.7 cm ²

• None of the above

Tags

CCSS.7.G.B.4

What is the area of a triangle with a base of 3 inches and a height of 8 inches?

• 24 in ²

• 22 inches

• 12 in ²

• 24 inches

Tags

CCSS.6.G.A.1

What is the area of a trapezoid with bases of 3.5 and 8.5 inches, and a height of 6 inches?

• 72 in. ²

• 36 in. ²

• 72 inches

• None of the above

Tags

CCSS.6.G.A.1

What is the perimeter for a square when side is 13 cm long?

• 169 cm ²

• 40.8 cm ²

• 52 cm

• 26 cm ²

Tags

CCSS.4.MD.A.3

If the area of a rectangle is 56 cm ², and the length is 8 cm, what is the width?

• 64 cm

• 48 cm

• 448 cm ²

• 7 cm

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the circumference of a circle with a diameter of 11 inches?

• 34.56 in.

• 17.28 in.

• 380.13 in. ²

• 95.03 in. ²

Tags

CCSS.7.G.B.4

If a triangle has an area of 36 inches ², and its height is 9 inches, how long is the base? (Careful)

• 4 inches

• 16 inches

• 324 inches

• 8 inches

Tags

CCSS.6.G.A.1

If the area of a square is 100 ft. ², how long is each side?

• 25 ft.

• 10 ft.

• 20 ft.

• 50 ft.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B