Question

Prove that the equal chords of a circle subtend equal angles at the centre.​

Answer 1

Answer:

In Δ AOB and Δ COD ,AB = CD (Given)AO = CO (radius)OB = OD (radius)By S.S.S congruency, Δ AOB Δ COD AOB = COD

Answer 2

Answer:

Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2. When discussing the acceleration of gravity, it was mentioned that the value of g is dependent upon location. There are slight variations in the value of g about earth's surface.