Question

What is the area and perimeter of a quarter circle whose diameter is 8cm.

Answer 1

Answer:

Diameter of the circle = 8cm

Radius = Diameter/ 2

= 8cm/2 = 4cm

Area of a quarter circle

=

$\frac{\pi {r}^{2} }{4}$

=

$\frac{\pi {4}^{2} }{4} {cm}^{2}$

$= 3.14 \times 4 {cm}^{2}$

= 12.56 cm square

Perimeter of quarter circle

=

$\frac{\pi \times r}{2} cm$

= 3.14×2 cm

= 6.28cm

Answer 2

Step-by-step explanation:

diameter of circle is 8cm

radius of circle is 4cm

perimeter or circumference of circle 2πr=2*22/7*4

=25.1327412

and

area of circle is πrsquare=22/7*4*4

=50.2654825