4. एक वर्ग का क्षेत्रफल एक आयत के क्षेत्रफल से दुगुना है। यदि
वर्ग का क्षेत्रफल 324 वर्ग सेमी है और आयत की लम्बाई 13.5
सेमी० है, तो आयत की चौड़ाई क्या है?
AN
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Answer:
12cm
Step-by-step explanation:
let area of the square be x then area of the rectangle will be 1/2x
as it is given , area of square=324cm^2
which implies area of rectangle=1/2×324 = 162cm^2
area of rectangle= length×breadth
162= 13.5×b
=> b=162÷13.5cm
=> b= 12 cm
hence, breadth of the rectangle is 12cm
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