Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle.
Since the radius of the circle is 4.7 inches, we can plug 4.7 in for the radius in our formula.
Remember that 4.7 in.² is equal to 4.7 inches × 4.7 inches or 22.09 in.².
Now, remember that pi is approximately equal to 22/7 or 3.14. This means that we can estimate the area of the circle by plugging in 3.14 for pi.
Area = 69.36 in.²
Now, let's find the circumference of the circle. To find the circumference of a circle, start with the formula for the circumference.
Circumference = 2πr
Notice that our radius is 4.7 inches which means we can plug in 4.7 inches for the radius in our formula.
Circumference = (2) (π) (4.7 in)
Circumference = 9.4π inches
Answer:
4 2/3 units cubed
Step-by-step explanation:
Since they didn't give the 3rd side length, but they gave us one side's area we can just do 3 1/3 times 1 2/5 which gives us 14/3 which then is reduced to 4 2/3 units cubed.
Oh and btw I see that's a khan academy question.
Answer:
Step-by-step explanation:
Answer:
The reciprocal of 13/14 is 14/13. Which is also 1 and 1/13
Step-by-step explanation:
This is because a reciprocal means flipping the fraction. Changing the numerator to the denominator. Then I changed the improper fraction to a mixed number. (If you don't mind)