12. one of the angles of a quadrilateral is right angle. If the sum of other two angle is 135º. Find the 4 angle
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12. one of the angles of a quadrilateral is right angle. If the sum of other two angle is 135º. Find the 4 angle
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Verified answer
Given :
To Find :
Solution :
As we know that, the sum of all sides of quadrilateral is 360°
★ According to Question now :
→ ∠1 + ∠2 + ∠3 + ∠4 = 360°
→ 135° + 90° + x = 360°
→ 225 + x = 360°
Substracting 225 from 360 we get :
→ x = 360 - 225
→ x = 135°
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V E R I F I C A T I O N :
→ 135° + 90° + x = 360
→ 225° + 135° = 360°
→ 360° = 360°
⛬ LHS = RHS
Hence Verified !
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