Question

please answer this question please mensuration​

Answer 1

Step-by-step explanation:

so a square has equal sides.

formula to find the area of square is (a x a) where a is the side of square.

as given side is a = 1 unit

i. if its side is halved:

a = 1/2

area = 1/2*1/2 = 1/4 = 0.25 square unit

now, perimeter is the sum of lengths of all sides which is (a + a + a + a) = 4a

ii. if its side is doubled:

double of a = 1 is 2 unit. So

perimeter = 4(2) = 8 unit