Five mark exercise problems I — task. Mathematics State Board, Class 9.

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1. The area of a rectangle is

$x^2 + 7x + 12$ . If its breadth is

$(x + 3)$ , then find its length.

Answer:

The length

$=$

2. The base of a parallelogram is

$(5x + 4)$ . Find its height, if the area is

$25x^2 - 16$ .

Answer:

The height

$=$

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