How much would this cost

Circle assignment
Interior and exterior angles of circles
1) Inscribed angle = 56/2 = 28 degrees
2) Inscribed angle = 140/2 =70degrees
3) 15/2 =7.5
4) 86/2=43
Note: theorem used is angle subtended at the point of circumference is half of angle of arc.
Right angle problems
1) Leg = a =
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