Question

If the circumference of a circular sheet is 165m, find its radius. Also find the area of the sheet. ​

Answer 1

Answer:

26.25m  = radius,  Area =  2164.625 $m^{2}$

Step-by-step explanation:

Circumference = $2\pi r$

• 165m = 2 x $\frac{22}{7}$ x r (Transpose)
• $\frac{165}{1}$ x $\frac{1}{2}$ x $\frac{7}{22}$  = radius
• $\frac{105}{4}$ = radius
• 26.25m  = radius

Area of circle = $\pi r^{2}$

• Area = $\frac{22}{7}$ x 26.25 x 26.25
• Area =  $\frac{15159.375}{7}$
• Area =  2164.625 $m^{2}$