The shape of the top surface of a table is a trapezium. Find its area if its parallel sides are 1 and 1.2 m and perpendicular distance between them is 0.8 m.

Here one parallel side of the trapezium (a) = 1 m
And second side (b) = 1.2 m and height (h) = 0.8 m
∴ Area of top surface of the table = 1/2(a+b)xh
= 1/2x(1+1.2)x0.8
= 1/2x(1+1.2)x0.8
= 1/2×2.2×0.8=0.88m²
Hence, the surface area of the table is 88m²

Class 8 Maths Chapter 11 Exercise 11.2 Solution in Video

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