IBEW Geometry and Measurement

Question 1

What is the area of a rectangle that is 8 feet long and 5 feet wide?

Accepted Answer

40 sq ft

Answer

Area of a rectangle = length × width = 8 × 5 = 40 sq ft.

Question 2

What is the perimeter of a square with a side length of 7 feet?

Accepted Answer

28 ft

Answer

Perimeter of a square = 4 × side = 4 × 7 = 28 ft.

Question 3

What is the area of a triangle with a base of 10 feet and a height of 6 feet?

Accepted Answer

30 sq ft

Answer

Area of a triangle = ½ × base × height = ½ × 10 × 6 = 30 sq ft.

Question 4

A right triangle has legs of 3 ft and 4 ft. What is the length of the hypotenuse?

Accepted Answer

5 ft

Answer

By the Pythagorean theorem: √(3² + 4²) = √(9 + 16) = √25 = 5 ft.

Question 5

What is the circumference of a circle with a diameter of 10 feet? (Use π ≈ 3.14)

Accepted Answer

31.4 ft

Answer

Circumference = π × diameter = 3.14 × 10 = 31.4 ft.

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