Chapter 11 Mensuration - Shapes Worksheet Page 2

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170
M
ATHEMATICS
Area of rectangular beds = ------------------
Area of park left after cementing the path = ------------------
Area covered by the grass = ------------------
We can find areas of geometrical shapes other than rectangles also if certain
measurements are given to us . Try to recall and match the following:
Diagram
Shape
Area
rectangle
a × a
square
b × h
πb
triangle
2
1
×
b h
parallelogram
2
circle
a × b
Can you write an expression for the perimeter of each of the above shapes?
TRY THESE
(a) Match the following figures with their respective areas in the box.
2
49 cm
2
77 cm
2
98 cm
(b) Write the perimeter of each shape.

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