Geometry Formulas 3 — Questions and Answers
Question 1: What is the area of a parallelogram with base 9 and height 5?
- 45 (Correct answer)
- 14
- 22.5
- 90
Correct answer: 45
Area = base × height = 9 × 5 = 45.
Question 2: What is the volume of a cone with radius 3 and height 4? (use π ≈ 3.14)
- 37.68 (Correct answer)
- 113.04
- 12.56
- 75.36
Correct answer: 37.68
Volume = ⅓πr²h = ⅓(3.14)(9)(4) = 37.68.
Question 3: What is the area of a circle with diameter 10? (use π ≈ 3.14)
- 78.5 (Correct answer)
- 31.4
- 314
- 62.8
Correct answer: 78.5
Radius is 5, so area = πr² = 3.14(25) = 78.5.
Question 4: What is the perimeter of a rectangle with length 12 and width 7?
- 38 (Correct answer)
- 84
- 19
- 42
Correct answer: 38
Perimeter = 2(l + w) = 2(12 + 7) = 38.
Question 5: What is the sum of the interior angles of a pentagon?
- 540 (Correct answer)
- 360
- 720
- 450
Correct answer: 540
Sum = (n − 2)180 = (5 − 2)180 = 540.
Question 6: What is the volume of a rectangular prism 3 by 4 by 5?
- 60 (Correct answer)
- 47
- 12
- 94
Correct answer: 60
Volume = length × width × height = 3 × 4 × 5 = 60.
Question 7: What is the area of a triangle with base 10 and height 6?
- 30 (Correct answer)
- 60
- 16
- 45
Correct answer: 30
Area = ½ base × height = ½(10)(6) = 30.
Geometry Formulas 3
What is the area of a parallelogram with base 9 and height 5?