cutshalljosef cutshalljosef
  • 14-11-2016
  • Mathematics
contestada

A balloon has a circumference of 28 in. Use the circumference to approximate the surface area of the balloon to the nearest square inch.

Respuesta :

FallOutBlink
FallOutBlink FallOutBlink
  • 14-11-2016
Okay so use the surface area= 4x pi x r^2

circumference = 2x pi x r


28 = 2x pi x r

28/2x pi= r
radius = 4.5 ins

surface area = 4x pi x 4.5^2
surface area = 254.5 ins^2
surface area = 255 ins^2 (to the nearest square inch)
Answer Link

Otras preguntas

Explain the following terms in detail in your own words Confidentiality Expert Witnessing Engineer’s approach to risk
Find the solutions to x2 = 12. A. X- = +2/6 B. = 15C. h= +23 D. x= +372​
Determine the quotient of 2 over 5 divided by 3 over 4.
What is 9/11 and what happened on this day?
Why is blood considered a suspension?
write a letter to your sister in another school telling her about the quarrel you had with your best friend not less than 400 words​
explain why we had IBONG adarnang akda in the philippines ??​
Which of the following situations are equal to 30%? Select all that apply. A) 27 out of 90 B) 12 out of 36 C) 50 out of 80 D) 9 out of 30 E) 6 out of 24 Will gi
que hay en medio del sol y de la col
please help me i need to pass