Question

a)The area of a rectangular field is 7632m² .If the length of the field is 99 m, what is its width?b) The perimeter of a rectangular painting is 358 cm. If the width of the field is 82 cm, what is its length?

Answer 1

We have

A=7632m^2

the formula of the area of a rectangle

$A=l\times w$

where l is the length and w is the width

in our case we have

l=99m

then we substitute the values given in the formula

$7632=99\times w$

we need to isolate the w in order to find the value of the width

$\frac{99}{99}\times w=\frac{7632}{99}$

$w=\frac{7632}{99}=77.09m$

the width is 77.09m