GMAT - Quantitative Reasoning Sample Questions
Question #4
4a. Briefly explain how to determine the circumference or perimeter of the following figures and identify the circumference or perimeter of each figure:
- A circle with a diameter of 12 inches
- A rectangle with a left side length of 5 inches and a top side length of 8 inches
4b.
- The circumference of a circle can be determined using the formula C = pi * d. This means that the circumference of a circle is equal to the diameter of the circle multiplied by pi, which is usually rounded to 3.14 when determining the circumference of a circle. Therefore, the circumference of this particular circle is equal to 12 * 3.14 or 37.68 inches.
- The perimeter of a rectangle can be determined using the formula P = 2 * (Side A + Side B). This means that the perimeter of a rectangle is equal to the sum of the length of the top or bottom side and the left or right side multiplied by 2. Therefore, the perimeter of this particular rectangle would be equal to 2 * (5 + 8) or 26 inches.