Easy Math Class 9 Level 9

In an isosceles triangle the vertex angle is 100° then what is each base angle?

समद्विबाहु त्रिभुज में शीर्ष कोण 100° है तो प्रत्येक आधार कोण कितना होगा?

A) 30° / 30° B) 40° / 40° C) 50° / 50° D) 80° / 80°
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Correct Answer

B. 40° / 40°

Explanation

The remaining equal base angles sum to 80° so each is 40°.

शेष दो बराबर आधार कोणों का योग 80° है इसलिए प्रत्येक 40° होगा।

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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