Medium Math Class 9 Level 1

If two angles of a linear pair are such that one is twice the other then what is the smaller angle?

यदि रैखिक युग्म के दो कोणों में एक दूसरे का 2 गुना है तो छोटे कोण का मान क्या होगा?

A 45° / 45° B 60° / 60° C 90° / 90° D 120° / 120°
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Correct Answer

B. 60° / 60°

Explanation

Let the smaller angle be x, then x + 2x = 180° so x = 60°.

मान लें छोटे कोण x है तो x + 2x = 180° इसलिए x = 60°।

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