1.

Find the base of a triangle whose area is 220 cm2 and height is 11cm.

Answer»

Given Area = 220 cm2, h = 11 cm

Area of a triangle = 1/2b.h

= 1/2 × b × 11 = 220cm2 (given)

b × 11 = 220 × 2

b = \(\frac {220\times2}{11} = 40\) 

∴ base of the triangle = 40 cm.



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