90 × 7 = 630 , it's not hard, it's easy
Circumference + perimeter =38
x = circumference of circle
find r in terms of x
2

r=x
r=

Area=

r^2
so..
A=

(

)^2
=

(

)
=

(38-x) is perimeter
then

(

)^2

+ (

)^2
then you graph it and it equals
16.716 cm the circumference of the circle
Answer:
p=5
Step-by-step explanation:
Yes, 5 goes into 100 exactly 20 times because 5 multiplied by 20 is 100