Question

what is the value of x in the triangle?
○ 65°
○ 55°
○ 45°
○ 35°
(there is a triangle image with angles 47°, 88° and x)

Explanation:

Step1: Recall triangle angle sum

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

Step2: Set up the equation

$47^\circ + 88^\circ + X = 180^\circ$

Step3: Calculate sum of known angles

$47 + 88 = 135$

Step4: Solve for X

$X = 180^\circ - 135^\circ$

Answer:

$45^\circ$ (Option: 45°)