Question

how many rectangle can be drawn with 38 cm as perimeter? Also,find the dimensions of the rectangle whose area will be maximum.​

Answer 1

Step-by-step explanation:

Let a and b are two sides of rectangle ; Now , 2 a + 2 b = 38 ⇒ a + b = 19 ⇒ a = 19 - b . . . . . . . . . ( i ) Now if put a = 1 in above equation we get b = 18 if put. So , There are total 9 ractangles . And with dimension 9 and 10 will have maximum area which is 90 unit square .

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Answer 2

Answer:

Let a and b are two sides of rectangle ; Now , 2 a + 2 b = 38 ⇒ a + b = 19 ⇒ a = 19 - b . . . . . . . . . ( i ) Now if put a = 1 in above equation we get b = 18 if put. So , There are total 9 ractangles . And with dimension 9 and 10 will have maximum area which is 90 unit square .

Step-by-step explanation:

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