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Marta_Voda [28]
1 year ago
11

The perimeter of a rectangle measuring (2x + 2)cm by (3x -3) cm is 58cm. Calculate its area. 13. The perimeter

Mathematics
1 answer:
Stella [2.4K]1 year ago
3 0

Given:

The length of the given rectangle is l =(2x+2) cm.

The width of the given rectangle is w =(3x-3) cm.

The perimeter of the given rectangle is P =58cm.

Required:

We need to find the area of the rectangle.

Explanation:

Consider the perimeter of the rectangle formula.

P=2(l+w)

Substitute l=2x+2, w =3x-3 and P=58 in the formula.

58=2(2x+2+3x-3)58=2(5x-1)58=10x-2

Add 2 to both sides of the equation.

58+2=10x-2+260=10x

Divide both sides by 10.

\frac{60}{10}=\frac{10x}{10}x=6

Substitute x =6 in the equations l=2x+2.

l=2x+2=2(6)+2=12+2=14cmSubstitute\text{ }x=6\text{ }in\text{ }the\text{ }equations\text{ }w=3x-3.w=3x-3=3(6)-3=18-3=15cm

The area of the rectangle is

A=lw

Substitute l=14cm and w =15cm in the formula.

A=14\times15A=210cm^2

Final answer:

The area of the given rectangle is 210 square cm.

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