Answer:
∠e= 42 degrees.
Step-by-step explanation:
the bottom angle in the right side will equal:
180 (sum of both angles outside and inside as they make a straight line which is always measured 180 degrees) so,
180-132=48 degrees
then the sum of all angles in a triangle is equal to 180 degrees so,
e+90 (right angle in the bottom left side) +48=180
(simplify)
e+138=180
(subtract 138 for both sides)
e=180-138
(simplify)
e=42 degrees
