# CBSE Class 10-Mathematics: Questions and Answers Chapter –6 Triangles Part 7

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**Question 15:**

In figure, express in terms of .

**Answer:**

**Question 16:**

The perimeter of two similar triangle and are respectively and . If , find .

**Answer:**

**Question 17:**

In the given figure, . If

, find the value of

**Answer:**

In the given figure,

**Question 18:**

The hypotenuse of a right-angled triangle is and one of sides is . if , find the third side in terms of .

**Answer:**

Let third side be

Also

From (i) and (ii), we get

**Question 19:**

In the given figure, and , find the value of .

**Answer:**

In