a question in maths please answer
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Answered by
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Heya☺
Let the length and breadth be 7x and 3x respectively
Perimeter of rectangle = 2(l+b)
30 = 2 ( 7x+ 3x)
30 = 20x
x = 3/2
Therefore
l = 7× 3/2 = 21/2
b = 3 × 3/2 = 9/2
Area of rectangle = l×b
= 21/2 × 9/2
= 189/4 unit^2
= 47.2 unit^2
✌✌ Hope this helps !
Let the length and breadth be 7x and 3x respectively
Perimeter of rectangle = 2(l+b)
30 = 2 ( 7x+ 3x)
30 = 20x
x = 3/2
Therefore
l = 7× 3/2 = 21/2
b = 3 × 3/2 = 9/2
Area of rectangle = l×b
= 21/2 × 9/2
= 189/4 unit^2
= 47.2 unit^2
✌✌ Hope this helps !
Answered by
1
length=7x
Breadth=3x
P=2(l+b)
30=2(7x+3x)
30/2=7x+3x
15=10x
15/10=x
3/2=x
Length=7x=>7×3/2=>21/2m
Breadth=3x=>3×3/2=>9/2m
Area=l×b
=21/2×9/2
=189/4 or 47.2m²
Breadth=3x
P=2(l+b)
30=2(7x+3x)
30/2=7x+3x
15=10x
15/10=x
3/2=x
Length=7x=>7×3/2=>21/2m
Breadth=3x=>3×3/2=>9/2m
Area=l×b
=21/2×9/2
=189/4 or 47.2m²
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