Question

X = a) 90 b) 135 c) 270

Answer 1

If the outer arc is x, the inner arc is 360 - x

$90 = \frac{1}{2}( x - (360 - x) )$

$90 = \frac{1}{2}( x - 360 + x )$

$90 = \frac{1}{2}( 2x - 360)$

$180 = 2x - 360$

$2x = 360 + 180$

$2x = 540$

$x = 270$

Answer 2

Answer: 270

Step-by-step explanation: Just finished lesson.