Question

What is the value of m∠a+m∠b

34°
56°
90°
180°

Answer 1

90

Explanation:

I just know , try it.. it's going to work .

Answer 2

The answer is:
`90^\circ`

Explanation:

Using the right angle we have

`90^\circ+m\angle a+m\angle b=180^\circ`

so we must have

`m\angle a+m\angle b=180^\circ-90^\circ=90^\circ`