Answer:
a)11cm
b)49.5cm²
Step-by-step explanation:
to find the perimeter you use the formula
o/360×2piR
since 2pi R=18pi cm,to find the radius you cancel pi from both sides 2r/2=18/2...so the radius is 9cm
therefore the perimeter will be:
70/360×2×22/7×9
27720/2520
=11cm
then to find the area you say
o/360×pi R²
70/360×22/7×9²
124740/2520
=49.5cm²
I hope this helps
Since the problem is asking for the amount of braid to go AROUND the circular rug, we want to use circumference.
The circumference is calculated as pi * d, where d is the diameter.
The diameter given is 5, so the answer is 5 * pi which is about 15.7 or about 16 feet.
I dont think he saves anything the answer might be 0 because he uses all the money!
875+625+625+375 =2500
Answer:
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Step-by-step explanation:
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