Cross five

The figure in the picture is composed of the same squares and has an area of 45cm². What is its perimeter?

Correct answer:

o =  36 cm

Step-by-step explanation:

S=45 cm2 S1=S/5=45/5=9 cm2  S1 = a2 a=S1=9=3 cm  o=4 3 a=4 3 3=36 cm



Did you find an error or inaccuracy? Feel free to write us. Thank you!







You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: