The perimeter of a rectangular plot is 248m and it's breadth is 42m. find it's (i) length (ii) area

Answers:

(i) Length = 82 m

(ii) Area = 3,444 m²

Explanation:

1- getting the length of the plot:

The perimeter of a rectangle is calculated as follows:

Perimeter = 2(length + breadth)

We are given that the perimeter is 248 m and that the breadth is 42 m

Substitute with the givens in the above equation to get the length as follows:

Perimeter = 2(length + breadth)

248 = 2(length + 42)

length + 42 = 248/2

length + 42 = 124

length = 124 - 42

length = 82 m

2- getting the area:

The area of a rectangle is calculated as follows:

Area = length * breadth

We have the length = 82 m and the breadth = 42 m

Therefore:

Area = length * breadth

Area = 82 * 42

Area = 3,444 m²

Hope this helps :)

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

to find the unit price of an object, you divide the price by object. you are trying to find out how much an object cost per unit.

for instance, lets say you have 50lb of ice cream(object) that cost 8.00 dollars(price). to find the unit cost, we take the 8.00 and divide it by 50, which will give us .16 cents per pound. we can check this by multiplying .16 by 50 = 8.00

so

object = e2

price = d2

unit price = c2

formula for c2:

=d2 / e2

so in my example about ice cream, we would have the following.

e2 = 50

d2 = 8.00

c2 formula:

=d2 / e2