Medium Math Class 9 Level 1

If two complementary angles differ by 20° then what is the larger angle?

यदि दो पूरक कोणों में एक कोण दूसरे से 20° अधिक है तो बड़ा कोण कितना होगा?

A) 35° / 35° B) 45° / 45° C) 55° / 55° D) 65° / 65°
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Correct Answer

C. 55° / 55°

Explanation

Let the angles be x and x + 20, then 2x + 20 = 90 so the larger angle is 55°.

मान लें कोण x और x + 20 हैं तो 2x + 20 = 90 इसलिए बड़ा कोण 55° है।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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