Question

9
1 point
What will be the area of circular button of radius 7 cm
(a) 154 cm
(b) 49 cm
(c) 154 cm
(d) 3.14 x 7 cm
a
Ob
Ос
Od
1 point
10​

Answer 1

$\huge\underline{\underline{\bold{\green{AnSwEr}}}} \\ \rm{\purple{area\:of\:circle= \pi \:r^2 }} \\ \longrightarrow \pink{radius= 7cm} \\ \therefore area\:of\:circle=\pi r^2 \\ \implies \dfrac{22}{7} \times (7)^2 \\ \implies \dfrac{22}{\cancel{7}} \times 7 \times \cancel{7} \\ \implies 22 \times 7 \\ \implies 154 \\ \large{\red{\underline{ \blue{\boxed{154cm^2} }}}}$