Answer:
circumference=2πr
=2×3.14×8.5
=53.38cm
53.38 cm
Step-by-step explanation:
The formula for finding the circumference of a circle is C = 2πr = πd. Because the problem approximates π = 3.14 all we need to do is multiply 3.14 by 2 and r. It is given that r = 8.5 cm so therefore C is 3.14 x 2 x 8.5 = 53.58 cm.
W=5
Perimeter=2(L+W)
2(L+W)=28
2(2W-1+W)=28
2(3W-1)=28
6W=30
1) 80% 2)25%
1)80% of $2.50 = $4.50
2)25% of $9 = $2.25
9 - 2.25 = $6.75
Please find attached photograph for your answer.
