Medium Math Class 9 Level 2

The angles of a triangle are x, 2x and 3x. What is the smallest angle?

एक त्रिभुज के कोण x, 2x और 3x हैं तो सबसे छोटा कोण क्या होगा?

A) 20° / 20° B) 30° / 30° C) 40° / 40° D) 60° / 60°
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Correct Answer

B. 30° / 30°

Explanation

x + 2x + 3x = 180° so 6x = 180° and x = 30°.

x + 2x + 3x = 180° इसलिए 6x = 180° और x = 30°।

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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