Question

activity :
1 - to find the area of circle briefly ( long with explanation).

2 -to find the curved surface area of cylinder briefly( long with explanation).

3 -prove that angle subtended by an arc is twice the angle subtended at any point on the remaining part of the circle briefly( long with explanation).

Answer 1

the are of a circle can be finded out by drawing the circle on it and count the boxes therefore that would be the area


Sorry it is just a half answer