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Help with correct answers

Help with correct answers-example-1

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Explanation:

A, we can find the value of y by using cyclic quadrilateral formula w/c is the sum of the angle and it's opposit are suplement . so

y + 96 = 180

y = 180 - 96

y = 84°

B, The value of x could be find by property of intrusive and central angle . intrusive angle is half of the centeral angle or arc susbended. so the arc measure 180° b/c it is streight line. so

1/2(180°) = 90° so any intrusive angle that suspended by streight line measure 90°(perpendicular).

C, we can find y by sum of triangle theory that any 3 side plane figure measure 180° . So

62° + 90° + = 180° ..... We use x as 90° we have

seen in the 2nd question.

y = 180° - 152° = 28°

I HOPE IT HELPS YOU:-)

User Nghia Luong
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