The perimeter of trapezium is 52cm.its non
Parallel sides is 8cm.find the area of trapezium
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From Pythagoras\' theorem
10² = 8² - x²
x² = 36
x = 6
so, base of the right-angled triangles is 6cm.
The shorter parallel side of the trapezium = x,
The longer parallel side will = x + 2*6 = x + 12
P = x + x + 12 + 10 + 10 = 52
2x = 20
x = 10
Finally the side lengths of the trapezium are 10, 10, 10 and 22.
A = h/2(a + b)
= 8/2 x 32
= 4 x 32
= 128cm
jayamkaruppamy:
Yeah,but I am in 8th grade so we are not doing in this method so I can't do it. R u having any other methods for it.
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