Question

two sides of a parallelogram are in the ratio 3:4. its perimeter is 42m . find its area​

Answer 1

Parallelogram is a quadrilateral in which opposite sides are equal and parallel.

And Perimeter of parallelogram is the sum of All sides

Since they are in a ratio ,

3x + 3x + 4x + 4x = 42 ( Perimeter of parallelogram)
14x = 42.
x= 3

The sides are:
3x => 3 x 3 = 9m
4x => 4 x 3 = 12m
3x => 3 x 3 = 9m
4x => 4 x 3 = 12m

Area of Parallelogram = b x h ( base x height )
Area = 3 x 4 = 12m^2

Note: Don’t forget to put units