This square is formed using three identical rectangles. If the perimeter of the square is 120 cm, find the perimeter of each rectangle.
Answers
Answer:
80 cm
Step-by-step explanation:
Perimeter of square = 120 cm
Side of square = ( 120/4 ) cm = 30 cm
Length of the rectangle = (30/3) cm = 10 cm
Breadth of the rectangle = 30 cm
Perimeter of the rectangle = 2 ( l+b )
= [ 2 ( 10 + 30 ) } cm
= ( 2 x 40 ) cm
= 80 cm
EXPLANATION
total perimeter of square is 120
square has 4 sides so
120/4
=4×30/4×1
=30/1
=30
each side of a square is
30
there are three rectangles of equal measures
so
there are vertical lines so we will find breadth
30/3
=3×10/3×1
=10/1
=10
so breadth is 10
there are not horizontal lines in this square
so
length will remain 30 only
we have to find the perimeter
30 is the length
and
10 is the breadth
so
2(30+10)
=(60+20)
=(80)
=80
FINAL ANSWERS
80cm
brainliest please