Question

What will be the area of quarter of a pizza having 28 cm diameter ?

• A. 77 $c{m}^2$
• B. 112 $c{m}^2$
• C. 154 $c{m}^2$
• D. 308 $c{m}^2$

Answer 1

The correct option is C 154 $c{m}^2$

Given Diameter = 28 cm ,
Hence radius = $\frac{diameter}{2}$= $\frac{28}{2}$ = 14 cm

area of quarter of pizza
= $\frac{1}{4}$$\times$$\pi \times$$r^2$
= $\frac{1}{4}$$\times$ $\frac{22}{7}$$\times$${14}^2$
= $\frac{1}{4}$$\times$ $\frac{22}{7}$$\times$196 = 154 $c{m}^2$