Find the area of rectangles with the following pairs of monomials as their lengths and breadths respectively:
(1) $(10m, 5n)$
(2) $(20x^2 , 5y^2)$
Given:
Lengths and breadths of rectangles are as follows:
$(10m, 5n)$
$(20x^2, 5y^2)$
To do:
We have to find the area of rectangles.
Solution:
We know that,
Area of a rectangle of length $l$ and breadth $b$ is $lb$.
Therefore,
Area of the rectangle with $(10m, 5n)$ as its measurements is,
$A=10m \times 5n$
$=50mn$
Area of the rectangle with $(20x^2, 5y^2)$ as its measurements is,
$A=20x^2 \times 5y^2$
$=100x^2y^2$
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