Question

if the length and breadth of a rectangle are doubled how many times the perimeter of the old rectangle will that of the new rectangle​

Answer 1

Answer:

Step-by-step explanation:

Let the old rectangle's length be L and breath be B

Perimeter, P1 = 2(L+B). ______(1)

When Length and breath is doubled length and breath will be 2L and 2B respectively

Perimeter, P2 = 2(2L+2B)

P2 = 4(L+B). ______(2)

dividing equation (2) by (1)

we get,

P2/P1 = 4(L+B)/2(L+B)

P2=2×P1

The new rectangle will be 2 times the old rectangle

Answer 2

Answer:

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