Sumer

In the given figure, ∠AOB = 90° and ∠ABC = 30°. Then, ∠CAO = ?

2021-10-10 09:54:27

Given:

AB = CD

We know that angles subtended from equal chords at center are equal.

∴ ∠ AOB = ∠ COD

∴ ∠ COD = 80°

2021-10-10 09:54:27

## Prashant

Given:

AB = CD

We know that angles subtended from equal chords at center are equal.

∴ ∠ AOB = ∠ COD

∴ ∠ COD = 80°