# NCERT Class 8 Mathematics Solutions: Chapter 3 –Understanding Quadrilaterals Exercise 3.3 Part 5

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**Question: 8** The following figures GUNS and RUNS are parallelograms. Find *x* and y. (Lengths are in cm)

(i)

Image

(ii)

Image

**Answer:**

**(i)** In parallelogram GUNS

[Opposite sides of parallelogram are equal]

Also, [Opposite sides of parallelogram are equal]

Hence, and.

**(ii)** In parallelogram SRUN

and

Hence, and **.**

**Question: 9** In the figure, both RISK and CLUE are parallelograms. Find the value of.

Image

**Answer**:

In RISK parallelogram.

Adjacent angles of a parallelogram are supplementary]

In CLUE parallelogram.

Opposite angles of a parallelogram are equal]

Image

Now, let take O center point. So, in

[Sum of measure of all the interior angles of triangle is

Hence,