Question

In the following figure,

∠COA is a/an ______ angle

Answer 1

In the following figure,

∠COA is a/an acute angle

Explanation:

Since, ∠COA = ∠COB + ∠BOA

= 20° + 30°

= 50°

Because ∠COA = 50° < 90°

So, ∠COA is an acute angle.