Question

answer of the questions please i need it

Answer 1

the answer is 5√2. which is square root of hc.f of the dimensions.

Answer 2

11) Given 1st rectangle's area = 15 x 10 = 150 sq cm
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2nd rectangle's area = 20 x 10 = 200 sq cm
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3rd rectangle's area = 25 x 10 = 250 sq cm
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Now it has asked minimum length of the square hall
So to find out minimum length of square hall we have to find the LCM of all the areas of 3 rectangles.
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LCM of 250, 200, 150 = 2 x 2 x 2 x 3 x 5 x 5 x 5 = 3000 cm
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Now length of side of the square = 3000 cm
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12) Given dimensions of water tank = 400cm ,320cm , 480cm

To find out the maximum length of the square tile we need to find out HCF of the dimensions
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HCF of 400, 320, 480 = 80

So now length of side of square tile = 80 cm

Hence the dimension of square tile of maximum size that can be fixed on all sides of the tank is 80cm
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