Answer:
Perimeter = 71
Step-by-step explanation:
angles formed by tangent lines has equal side lengths.
segments from A to tangent point = 17 each
segments from B to tangent point = 12 each (29 - 17 = 12)
segments from C to tangent point = 2.5 each
segments from D to tangent point = 4 each (21 - 17 = 4)
Perimeter = 2(17) + 2(12) + 2(2.5) + 2(4) = 71
