The surface area of the balloon is 249 in².
<h3>What is the surface area of the balloon ?</h3>
A balloon has the shape of a sphere. The distance round the sphere is equal to the circumference of the sphere.
Circumference of the sphere = 2πr
Where:
- r = radius
- π = pi = 22 / 7
Radius - circumference / 2π
28 / ( 2 x 22/7) = 4.45 inches
Surface area of a sphere = 4πr²
4 x 22/7 x 4.45² = 249 in²
To learn more about the surface area of a sphere, please check: brainly.com/question/27267844
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Answer:
65ft² i guess
Step-by-step explanation:
using area of rombus diagonal=½*d1*d2
He would need exactly 20 more dimes.
42 x 18 = 756
776 divided by 756 = 20
So if you do the math to this you would divide 29 by 2 and that would give you 14.
Answer:
10 packages of hot dogs bought.
Step-by-step explanation:
It is 10. It says that you bought 12 packages of MEAT, not hot dogs alone. So...
$4 * 10
= $40
$10 * 2
= $20
$40 + $20
= $60
