ABC is an isosceles triangle with AB = AC. Draw AP ⊥ BC to show that ∠B = ∠C.

Solution:

Let's construct a diagram according to the given question.

In triangles APB and APC,

∠APB = ∠APC (Each 90°)

AB = AC (Since ABC is an isosceles triangle)

AP = AP (Common)

ΔAPB ≅ ΔAPC (Using RHS congruence rule)

Thus, ∠B = ∠C (CPCT)

☛ Check: NCERT Solutions Class 9 Maths Chapter 7

Video Solution:

ABC is an isosceles triangle with AB = AC. Draw AP ⊥ BC to show that ∠B = ∠C

NCERT Maths Solutions Class 9 Chapter 7 Exercise 7.3 Question 5

Summary:

If ABC is an isosceles triangle with AB = AC and AP ⊥ BC, then ∠B = ∠C.

☛ Related Questions:

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