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(20 points)I need help please

(20 points)I need help please-example-1

2 Answers

5 votes

Answer: Solution,

length (l) = 24 cm

perimeter (p)= 74 cm

Area (A) = ?

we know,

P = 2(l + b )

74 = 2( 24 + b)

74 = 48 + 2b

2b = 74 - 48

2b = 26

b=
(26)/(2)

b = 13

now,

A = l*b

= 24 * 13

= 312 cm square

Therefore, the area of the rectangle is 312 cm square.

User Jpsimons
by
7.6k points
4 votes


\text{Suppose the width of the rectangle is }x\text{ cm}


\text{then the perimeter can be expressed as}


2(24+x)=72


24+x=36


x=12


\text{Therefore the area of the rectangle is }24\cdot x=24\cdot 12=288\text{ cm}{}^2

User Rami Nour
by
8.6k points

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