The length of a rectangle is 3cm more than its breadth and its perimeter is 50cm.
a) what is the sum of its length and breadth?
b) Find the length and breadth of the rectangle
Answers
Answered by
9
Answer: Let the breadth be x.
Length=3+x
Perimeter=50cm
2*(l+b)=50
2*(x+3+x)=50
2*(3+2x)=50
6+4x=50
4x=44
x=11
Length=3+11=14cm
Breadth=11cm
Sum=14+11=25.
hope it helps you.
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Step-by-step explanation:
Answered by
32
Answer:
- Let the breadth be = x
- Then the length = x+3
- Perimeter of rectangle is 50 cm
- Formula to find perimeter = 2( l + b )
- Therefore, 2 ( l + b ) =50 cm
2 ( x+3 + x ) =50
2 (2x +3 ) =50
4x + 6 = 50
. 4x = 50 - 6
4x = 44
x = 44 ÷ 4
x = 11
6. Breadth = x = 11 cm
7. Length = x + 3 = 11 + 3 = 14 cm
8. Sum of length and breadth is 11 + 14 = 25
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