Since the 90% is 63. divide it by 9. then you would get value of 7. then multiple it by 10.
which is equal to 70. so 100% is 70.
Skip work! get some booty! don't care about skool
2(20+60+48)=2(128)= 256 square inches
Hope it helps
The circumference is 81.68 mm. C= 2pi(r)
