What is the circumference of the circle r=4ft
a. 25.12
b .200.96
c.12.56
d. 50.24
or e. 6.28
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Step-by-step explanation:

the circumference is : 2pi r= 2×3.14×4 =  25.2

answer: the answer is 127 degrees

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.