Question

find the shortest side of $\triangle cde$. the diagram shows a triangle. what is the value of $b$? $b = \square^\circ$

Explanation:

Step1: Recall triangle angle sum

The sum of interior angles in a triangle is $180^\circ$.

Step2: Calculate missing angle $b$

$b = 180^\circ - 53^\circ - 57^\circ$
$b = 180^\circ - 110^\circ$
$b = 70^\circ$

Answer:

$70$