# CBSE Class 10-Mathematics: Chapter – 6 Triangles Part 13

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**Question 12:**

Triangle ABC is right-angled at C and CD is perpendicular to AB, prove that

**Answer:**

Given: A right angled at C and

To prove:

Proof: Consider

Let

Then

In

**Question 13:**

Triangle ABC is right angled at C and CD is Perpendicular to AB. Prove that

**Answer:**

Given: right-angled at C and

To prove:

Proof: Consider

Let

Then

In