Q1: The radius of a circular plate is 7 Inches.
Find its area. (use
= 3.14 )
Round to the nearest hundredth.
square inches

153.86 inches^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

A = 3.14 * (7)^2

   = 3.14 *49

   =153.86 inches^2

153.86  square inches

Step-by-step explanation:

the area of a circle is πr^2

the radius here is 7 and we use the value of 3.14 for π

3.14 * 7^2 = 3.14 * 49 = 153.86

56

step-by-step explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls