Answer:
∠x = 72°
Step-by-step explanation:
since two sides are equal, their opposite angles are equal.
Then the upper angle is also equal to 54°.
All triangle angles add up to 180°.
∠x = 180 - 54 - 54 = 72°
x=2
101-13.7x=73.6
13.7x=101-73.6
13.7x=27.4
x=27.4/13.7
69.08
circumference is 2πr which is 3.14 x 2 x 11