Question

if area of triangle is 20cm2 then find the area parallelogram

Answer 1

Given : a parallelogram and a triangle have a common base  

area of the triangle is 20cm²

To Find : area of parallelogram

(a)20cm^2 (b)40cm^2 (c)10cm^2 (d)400cm^2 ​

Solution:

Area of triangle = (1/2) * base * height

Area of Parallelogram  = base * height

parallelogram and a triangle have a common base  b = b

and  if vertex of triangle  lie of opposite side of parallelogram

Then h will also be common

Then Area of Parallelogram  = 2   (1/2) * base * height

=> Area of Parallelogram  = 2 Area of triangle

=>  Area of Parallelogram  = 2  * 20

=>  Area of Parallelogram  = 40  cm²

If third vertex in not on opposite side of parallelogram / or in line of that

then we can not find any relation.

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