OAR OAR Math Skills: Geometry 5

Question 1

A sphere has a radius of 3 in. What is its volume? (Use π ≈ 3.14)

Accepted Answer

113.04 in³

Answer

37.68 in³

Answer

452.16 in³

Answer

75.36 in³

Question 2

Two similar triangles have corresponding sides in a ratio of 3:5. If the area of the smaller triangle is 27 cm², what is the area of the larger triangle?

Accepted Answer

75 cm²

Answer

45 cm²

Answer

135 cm²

Answer

50 cm²

Question 3

A sector of a circle has a central angle of 90° and radius 8 cm. What is the area of the sector? (Use π ≈ 3.14)

Accepted Answer

50.24 cm²

Answer

25.12 cm²

Answer

200.96 cm²

Answer

100.48 cm²

Question 4

A line passes through points (0, 4) and (3, 10). What is the equation of the line?

Accepted Answer

y = 2x + 4

Answer

y = 3x + 4

Answer

y = 2x + 6

Answer

y = x + 4

Question 5

Which transformation maps a figure onto itself only if the figure has rotational symmetry?

Accepted Answer

Rotation

Answer

Reflection

Answer

Translation

Answer

Dilation

Question 6

A right circular cylinder has a volume of 502.4 cm³ and height of 10 cm. What is its radius? (Use π ≈ 3.14)

Accepted Answer

4 cm

Answer

5 cm

Answer

8 cm

Answer

2 cm

Question 7

In triangle PQR, PQ = QR = 10 and PR = 12. What is the height from Q to PR?

Accepted Answer

8

Answer

6

Answer

5

Answer

10