Question
Download Solution PDFIn triangle ABC, AB = AC and ∠A = 70º. Find the value of ∠C.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
In triangle ABC, AB = AC and ∠A = 70º.
Formula Used:
In an isosceles triangle, the base angles are equal.
Sum of angles in a triangle = 180º
Calculation:
Let ∠B = ∠C = x
∠A + ∠B + ∠C = 180º
⇒ 70º + x + x = 180º
⇒ 70º + 2x = 180º
⇒ 2x = 180º - 70º
⇒ 2x = 110º
⇒ x = 55º
∴ The correct answer is option (4).
Last updated on Jun 17, 2025
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