Question

Find the value of Sin? 20° + Sin2 70° - Sin? 45°
In a right-angled triangle ABC, AB = X/2, BC = x+2 and AC = x+3. Find the value of x.
Two concentric circles are of radii 25 cm and 7 cm. Find the length of the third chord of the​

Answer 1

Answer:

In a right-angled triangle ABC, AB = X/2, BC = x+2 and AC = x+3. Find the value of x.

Two concentric circles are of radii 25 cm and 7 cm. Find the length of the third chord of the