Math Math Geometry and Measurement 2 — Questions and Answers
Question 1: What is the area of a circle with diameter 10 cm? (Use π ≈ 3.14)
- 78.5 cm² (Correct answer)
- 31.4 cm²
- 314 cm²
- 62.8 cm²
Correct answer: 78.5 cm²
Radius = 5 cm; Area = πr² = 3.14 × 25 = 78.5 cm².
Question 2: A right angle measures exactly how many degrees?
- 90° (Correct answer)
- 45°
- 180°
- 60°
Correct answer: 90°
A right angle is defined as exactly 90°.
Question 3: What is the surface area of a rectangular box that is 3 cm × 4 cm × 5 cm?
- 94 cm² (Correct answer)
- 60 cm²
- 47 cm²
- 120 cm²
Correct answer: 94 cm²
Surface area = 2(lw + lh + wh) = 2(12 + 15 + 20) = 2 × 47 = 94 cm².
Question 4: Which of the following is a property of a parallelogram?
- Opposite sides are equal and parallel (Correct answer)
- All angles are 90°
- All sides are equal
- Diagonals bisect at right angles
Correct answer: Opposite sides are equal and parallel
In a parallelogram, opposite sides are always equal in length and parallel.
Question 5: A road runs 3 miles north and then 4 miles east. How far is the endpoint from the start?
- 5 miles (Correct answer)
- 7 miles
- 6 miles
- 12 miles
Correct answer: 5 miles
Using the Pythagorean theorem: √(3² + 4²) = √(9 + 16) = √25 = 5 miles.
Question 6: How many sides does a hexagon have?
- 6 (Correct answer)
- 5
- 7
- 8
Correct answer: 6
A hexagon is a polygon with exactly 6 sides.
Math Math Geometry and Measurement 2
What is the area of a circle with diameter 10 cm? (Use π ≈ 3.14)