Question

find the value of x in the triangle shown below.
x =

10.4

62°

12

12

do 4 problems

Explanation:

Step1: Identify triangle type

Two sides are equal (12,12), so isosceles triangle.

Step2: Equal angles opposite equal sides

Angles opposite 12s are equal; let each be $x$.

Step3: Sum of angles in triangle

$62^\circ + x + x = 180^\circ$

Step4: Solve for x

$2x = 180^\circ - 62^\circ = 118^\circ$; $x = 59^\circ$

Answer:

59