Question

in the figure below, $m\angle 1 = 67^\circ$ and $m\angle 2 = 78^\circ$. find $m\angle stw$.

Explanation:

Step1: Identify angle types

∠STW is a straight angle (180°).

Step2: Calculate ∠STW

∠STW = 180° - m∠1 - m∠2
= 180° - 67° - 78°
= 35°

Answer:

35