Question

what is the value of b?
triangle tsr with s at left, r at right, t at top. side sr and side tr have one tick mark each. angle at r is 62 degrees. angle at t is b degrees.
b = °

Explanation:

Step1: Identify triangle type

The triangle has two equal sides (marked with ticks), so it's isosceles. Thus, $\angle S = \angle R = 62^\circ$.

Step2: Sum of triangle angles

The sum of angles in a triangle is $180^\circ$. So, $b + 62^\circ + 62^\circ = 180^\circ$.

Step3: Solve for b

$b = 180^\circ - 62^\circ - 62^\circ = 56^\circ$.

Answer:

$56$