Question

what
UX
is the
value
ABC
of L
AX
+
B.

Answer 1

Answer:

  72°

Step-by-step explanation:

Angle B is the same as angle C in this isosceles triangle. The sum of the angles is 180°, so you have ...

  x + 2x +2x = 180°

  x = 180°/5 = 36°

  ∠ABC = 2x = 2(36°) = 72°