Area of a sector with radius r and angle with degrees measure `theta` is ______ .

Prove that the area of a sector of circle with radius r and central angle theta^@ is 1/2 r^2 theta .

Prove that (1) the area of a sector of circle with radius r and central angle theta^(@) is (1)/(2)r^(2)theta (ii) the area of a sector of a circle of radius r and an arc of length s is (1)/(2)rs

Prove that the area of a segment of a circle with radius r and sector angle theta is r^2/2[(pi theta)/180^@-sin theta]

Length of an arc of a sector of a circle of radius r and angle theta is

Find the area of a sector of a circle with radius 6 cm if angles of the sector is 60^@ .

Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°.

Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60^(@) .

If sin theta = cos (theta-45°) , where theta and theta- 45° are acute angles, find the degree measure of theta .