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SAI International School
CLASS - VIII

Mathematics
CHAPTER-3: UNDERSTANDING QUADRILATERALS

Worksheet-1

Select the most appropriate answer from the given options.

1 The measure of each interior angles of a square is ___________.
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a) 36 b) 90 c) 72 d) 12
2 The regular four sided regular polygon is _____________.

a) Square b) rectangle c) rhombus d) trapezium

3 Find the sum of all interior angles of a pentagon.

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a) 540 b) 640 c) 660 d) 840

4 Find the number of diagonals of hexagon.
a) 9 b) 6 c) 4 d) 8

5 How many sides does an octagon have?
a) 7 b) 8 c) 9 d) 10

6 Find the sum of all interior angles of a hexagon.

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a) 720 b) 640 c) 660 d) 840

7. A quadrilateral with all sides of equal length and diagonals of equal length
is__________.
A. square B. rhombus C. trapezium D. rectangle

8 The adjacent angles of a parallelogram are in the ratio 3: 6. Find the angles.
A. 60°, 120° B. 80°, 100° C. 60°, 100° D. 50°, 80°

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