1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard X
Mathematics
Area of a Sector of a Circle
Figure 15.18 ...
Question
Figure 15.18 shows a sector of a circle of radius r cm containing an angle
θ
°
. The area of the sector is A cm
2
and perimeter of the sector is 50 cm. Prove that
(i)
θ
=
360
θ
25
r
-
1
(ii) A = 25r − r
2