Question

after another wind change
how can you find ( mangle nvt )?
( 20^{circ}+20^{circ}=40^{circ} )
( 90^{circ}+20^{circ}=110^{circ} )
( 90^{circ}-20^{circ}=70^{circ} )
( 90^{circ}+90^{circ}=180^{circ} )

Explanation:

Step1: Analyze the angle composition

We know that one part of \(\angle NVT\) is a right - angle (\(90^{\circ}\)) and another part is \(20^{\circ}\).

Step2: Calculate \(\angle NVT\)

By the angle - addition postulate, \(m\angle NVT=90^{\circ}+20^{\circ}\)

Answer:

\(90^{\circ}+20^{\circ} = 110^{\circ}\)