A sector subtends an angle of 70 at the centre of a circle of radius 21cm. Calculate the area of the sector?

asked Jun 4, 2021 176k views

4 votes

5.2k points

Please log in or register to add a comment.

4 votes

Answer:

12.8 cm^2

Explanation:

Angle subtended by the sector=70

Radius of the circle= 21 cm

Area of the sector =
(given angle)/(360) x
$\pi r^(2)$

=
$(70)/(360)* (22)/(7)*21\\\\(70)/(360 ) *22*3\\(77)/(6)\\ 12.8$

Robertklep answered Jun 11, 2021

4.5k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.3m questions

6.9m answers