Enlarged rectangle

The rectangle has dimensions of 8 cm and 12 cm. We enlarge it in a ratio of 5:4. What are the circumference and the area of the enlarged rectangle?

Correct answer:

o =  50 cm
S =  150 cm2

Step-by-step explanation:

a=8 cm b=12 cm  o1=2 (a+b)=2 (8+12)=40 cm k=45=1.25  o=k o1=45 40=45 40=4200=50 cm
S1=a b=8 12=96 cm2  S=k2 S1=452 96=150 cm2



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







Tips for related online calculators
Check out our ratio calculator.

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: