To find perimeter you add up all the sides so 5cm+6cm+17cm+8cm. This will get you 36cm.
Answer:
The correct answer is 63.
Step-by-step explanation:
Answer:
m=-7
Step-by-step explanation:
4+4+20m=-132
8+20m=-132
20m=-132-8
20m=-140
m=-7
Use photomath it'll solve it for you easily and it's always correct work for any kind of math