Math, asked by mahabaig3, 4 months ago

Question is: Find the unknown angle or angles marked in each of the following diagrams.

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Answers

Answered by garimasingh51
2

Answer:

a) 69 degree as sum of the angles opposite to the exterior angle will be equal to the exterior angle which is 121 .... 52degree+a=121

a=69degree

b) 152 degree=a+111 degree

a=152-111

a=41degree

Answered by Anonymous
49

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a) a = 68°

b) a = 41°

Step-by-step explanation:

a) Here in this question the property used is Exterior Angle Property.

So, exterior angle Property States that

  • Exterior Angle = Sum of the interior Opposite Angles

  • Here in this question Exterior Angle is 121°.

  • Here the interior angles are a, 52°.

  • So, 120 = a + 52

  • a = 120 - 52

  • a = 68°

b) Property Used = Exterior Angle Property

  • Exterior Angle = Sum of the interior Opposite Angles

  • Here in this question Exterior Angle is 152°

  • Here the interior angles are a and 111°

  • So, 152 = 111 + a

  • a = 152 - 111

  • a = 41°
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