AASA 8th Grade Math 2

Question 1

What is the volume of a cylinder with radius 3 cm and height 10 cm? (Use π ≈ 3.14)

Accepted Answer

282.6 cu cm

Answer

V = π × r² × h = 3.14 × 9 × 10 = 282.6 cubic centimeters.

Question 2

Solve the system: y = x + 2 and y = 3x − 4. What is x?

Accepted Answer

x = 3

Answer

Setting equal: x + 2 = 3x − 4 → 6 = 2x → x = 3.

Question 3

What is 5² × 5³?

Accepted Answer

5⁵

Answer

When multiplying powers with the same base, add exponents: 5² × 5³ = 5⁵.

Question 4

A triangle has angles measuring 40° and 75°. What is the third angle?

Accepted Answer

65°

Answer

Triangle angles sum to 180°: 180 − 40 − 75 = 65°.

Question 5

Which transformation preserves the shape and size of a figure?

Accepted Answer

Rotation

Answer

Rotation is a rigid transformation that preserves both shape and size.

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