A wire is cut into several pieces . Each of the small piece is bent into a square of side 2cm. If the total area of the small squares is 28 square cm, what was the original length of the wire?
Answers
Answered by
34
Answer:
56 cm
Step-by-step explanation:
Each square has side 2 cm, so has area 4 cm².
The total area of the squares is 28 cm², so there are 28 / 4 = 7 squares.
Each square uses 4 × 2 cm = 8 cm of wire for its perimeter.
So the length of wire is 7 × 8 cm = 56 cm.
Answered by
15
area of each small square=2×2=4cm square
given that total area of all square=28
hence,no. of square=28/4=7
perimeter of each square=4×2=8cm
total length of wire=8×7=56
Similar questions