The area of a trapezoid is calculated with the help of the formula, Area of trapezoid = ½ (a + b) h, where 'a' and 'b' are the bases (parallel sides) and 'h' is the perpendicular height.
Answer:
m∡D=108°
Step-by-step explanation:
When a triangle has two congruent sides then their angles are equal; therefore m∡C=m∡B
And the sum of angles in a triangle is 180; therefore
m∡D=180-m∡C-m∡B=180-36-36=108
