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Step-by-step explanation:
Length=17
Let breadth be X
Area= Length *breadth
102=17*b
so b=102/17
b=6
Now we have breadth so we can easily find the perimeter.
Perimeter of a rectangle=2(l+b)
P=2(17+6)
P=2(23)
P=46cm is the answer.
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Answered by
6
Given :
- Area of rectangle = 102 cm²
- Length of rectangle = 17cm
To find :
Perimeter of rectangle
Formula used :
- Area of rectangle = length × breadth
- Perimeter of rectangle = 2× ( length + breadth )
Solution :
First of all we need to find out breadth of rectangle
➝ Area of rectangle = length × breadth
➝ 102 cm² = 17cm × breadth
➝ Breadth = 102 cm²/ 17cm
➝ Breadth = 6 cm
________________________________
Now , Using formula of perimeter
➝ Perimeter of rectangle = 2×(17 cm + 6cm)
➝ Perimeter of rectangle = 2 × (23cm)
➝ Perimeter of rectangle = 46 cm
________________________________
ANSWER : 46cm
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