The adjacent sides of a rectangle are in the ratio of 7:4 and iys area is 112cm² find the length and brath of rectangke
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let it's length and breadth be 7y and 4y respectively
area = length × breadth
112= 28 y²
y=+-2
l=14cm[rejecting negetive value of length]
b=8cm
area = length × breadth
112= 28 y²
y=+-2
l=14cm[rejecting negetive value of length]
b=8cm
Answered by
2
Answer:let lengthy equal to 7x and breadth equal to 4x
Area = l×b= 112cm^2
7x × 4x = 112
28x^2 = 112
x^2 = 112/28
x^2 = 4
x = √4
X = 2
Therefore , L = 7 (2) =14
B = 4 (2) = 8
Step-by-step explanation:
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