Answer:
a = 63
b = 117
c = 63
Step-by-step explanation:
The sum of interior angles in a triangle is = 180
so the measure of a:
85 + 32 + a = 180 <em>add like terms</em>
117 + a = 180 <em>subtract 117 from both sides</em>
a = 63
a and be are supplementary angles so their sum is equal to 180
180 - 63 = 117 is the b's value
since a and c are on a pair of <em>parallel lines</em>, their value must be equal therefore the value of c is also 63
