Question

Find the circumference and area of a circle of radius 17.5 CM

Answer 1

radius = 17.5 cm


circumference = 2πr

=( 2 × 22 × 17.5)/ 7 = 44 × 2.5

= 110 cm



area = πr^2 = 22× (17.5)^2/ 7



= 962.5 cm^2




Answer: C. = 110 cm ,area = 962.5 cm^2

Answer 2

Solutions :-


Given :

Radius (r) of circle = 17.5 cm


To find :

i) Circumference of a circle
ii) Area of a circle


Find the circumference of the circle :-

circumference of the circle = 2π r

$= 2 \times \frac{22}{7} \times 17.5 \\ \\ = 110 \: cm$


Find the area of circle :-

Area of circle = π r²

$= \frac{22}{7} \times {(17.5)}^{2} \\ \\ = 962.5 \: \: {cm}^{2}$



Hence,
i) Circumference of a circle = 110 cm
ii) Area of circle = 962.5 cm²