The perimeter of a classroom is 42m.If the length of the classroom is 12m,find the breadth of the classroom and hence find the area of the classroom
Answers
Answered by
8
Perimeter = 2(l+b)
42=2(12+b)
42/2=12+b
21=12+b
21-12=b
b=9m
Area =l*b
=12*9
=108m^2
HOPE IT HELPS IF IT HELPS THEN HIT THE THANKS BUTTON
42=2(12+b)
42/2=12+b
21=12+b
21-12=b
b=9m
Area =l*b
=12*9
=108m^2
HOPE IT HELPS IF IT HELPS THEN HIT THE THANKS BUTTON
Answered by
5
Answer:
Although the shape of the classroom is quite unclear for me. But, as general i kept it rectangular shape. So, Breadth = 9m & Area = 108m²
Step-by-step explanation:
Let the shape of the classroom is rectangular.
Let Breadth = X
Perimeter = 2 (Length + Breadth)
According to question:-
42 = 2 (12+X)
21 = 12+X
X = 9m (Breadth)
Area = Length x Breadth
A = 12 x 9
A = 108m²
Similar questions