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Korolek [52]
3 years ago
7

(20 points)I need help please

Mathematics
2 answers:
o-na [289]3 years ago
8 0

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= \frac{26}{2}

b = 13

now,

A = l*b

   = 24 * 13

   = 312 cm square

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

Mama L [17]3 years ago
5 0

\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

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