Angle in a semi circle is 90°
<a = 180-90-<b = 90-28 = 62°
opposite angles of a cyclic quadrilateral sums up to 180°
<b + <a = 180
<b = 180-62
<b = 118°
100 is the common denominator so
70/100 + 20/100 90/100 = 9/10
Answer:1/5 you can buy 1/5
Step-by-step explanation:
