(e) of these77. The area of a sector of a circle is 77 sqcm and the a

1.	(e) of these77. The area of a sector of a circle is 77 sqcm and the angle of the sector is 45Â°Find the radius of the circle.SSC (10+2) 2012]
Answer» Let the radius of circle = r cm According to the question, Area of sector =77cm^2 (θ/360°)×πr^2=77 =>(45°/360°)×πr^2=77 =>r^2=77×7×8/22=> r=14 cm hit like if you find it useful

(e) of these77. The area of a sector of a circle is 77 sqcm and the angle of the sector is 45Â°Find the radius of the circle.SSC (10+2) 2012]

Answer»

Let the radius of circle = r cm

According to the question,

Area of sector =77cm^2

(θ/360°)×πr^2=77 =>(45°/360°)×πr^2=77

=>r^2=77×7×8/22=> r=14 cm

hit like if you find it useful