Question

find the area of rectangle whose side are 5a and 4a​

Answer 1

Area of a rectangle= lxb

= 5a x 4a

= 20 a

.

. . The area of that rectangle is 20a .

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Answer 2

Rectangle

RectangleSolve for area

RectangleSolve for areaA=20

RectangleSolve for areaA=20l Length -5

w Width -4