Math, asked by naseembano976984, 3 months ago

if radius of circle is 21 cm then find its area

Answers

Answered by snehakhamaru7053

2

Answer:

A=πr²

A=22/7×21²

=1386(ans.)

Answered by dolemagar

1

r= 21cm

Area= πr²

= 22/7 × 21cm×21cm

= 22×3cm×21cm

= 66cm×21cm

=1386cm²

Previous Question

Next Question

Similar questions

Chemistry, 1 month ago

An electronic transition cours between two bhor's orbits of Hydrogen atom for which difference in angular momentum is 3h/2pie and their radii ratio is 4 energy of radiation emitted in this electronic Transition is close to...

Math, 1 month ago

Change them to rational numbers with positive denominators. 9/-19 Chloe tall fgvd yuno cool...

Psychology, 1 month ago

What do u mean by "destiny"?

Social Sciences, 3 months ago

1) Define Direct current and Alternating Current.

English, 3 months ago

Give instructions to your brother on HOW TO MAKE TEA/COFFEE.

History, 10 months ago

{what is the meaning of manorial dues in Hindi and English also which I understand properly}☺☺...

Math, 10 months ago

check whether x-1 is a factor of f(x) = 4x×4×4×4×4 3x²- 2×x×x + x-7...

Social Sciences, 10 months ago

Who can make laws on the subjects which are not covered under the union and state lists and what are they called as?