Question

the diagram shows a triangle.
what is the value of b?
b = □°

Explanation:

Step1: Recall the sum of angles in a triangle

The sum of the interior angles of a triangle is \(180^{\circ}\). So, \(34^{\circ}+43^{\circ}+b = 180^{\circ}\).

Step2: Solve for \(b\)

First, add \(34^{\circ}\) and \(43^{\circ}\): \(34 + 43=77\). Then, \(b=180 - 77\).

Answer:

\(103\)