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Two Angles of a Quadrilateral Are 89° and 113°. If the Other Two Angles Are Equal; Find the Equal Angles.

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Question

Two angles of a quadrilateral are 89° and 113°. If the other two angles are equal; find the equal angles.

Sum
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Solution

Let the other angle = x°

According to given,

89° + 113° + x° + x° = 360°

2x° = 360° – 202°

2x° = 158°

x° = `158/2`

other two angles = 79° each

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Chapter 27: Quadrilateral - Exercise 27 (A)

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Selina Mathematics [English] Class 6
Chapter 27 Quadrilateral
Exercise 27 (A) | Q 1
Selina Concise Mathematics [English] Class 8 ICSE
Chapter 16 Understanding Shapes
Exercise 16 (C) | Q 1 | Page 187

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