Hard Math Class 9 Level 3

The angles of a quadrilateral are x + 20°, 2x - 10°, 3x + 10° and 4x - 20°. What is the largest angle?

एक चतुर्भुज के कोण x + 20°, 2x - 10°, 3x + 10° और 4x - 20° हैं। सबसे बड़ा कोण कितना है?

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Correct Answer

C. 124° / 124°

Explanation

The sum is 10x so x = 36°. The angles are 56° 62° 118° and 124° so the largest is 124°.

योग 10x है इसलिए x = 36°। कोण 56° 62° 118° और 124° हैं इसलिए सबसे बड़ा 124° है।

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