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lozanna [386]
3 years ago
14

A ball has a radius of 1 foot. What is the surface area of the ball?

Mathematics
2 answers:
Serjik [45]3 years ago
8 0

Answer:

The surface area of the ball is 12.56 square feet.

Step-by-step explanation:

Given : A ball has a radius of 1 foot.  

To find : What is the surface area of the ball?

Solution : Ball is consider as a sphere,

So, The surface area of a sphere is S=4\pi r^{2}

We have given that radius r = 1 foot

Now, The surface area of the ball is

S=4\pi r^{2}

S=4(3.14) 1^{2}

S=4(3.14)(1)

S=12.56 ft^2

Therefore, The surface area of the ball is 12.56 square feet.

stich3 [128]3 years ago
7 0
We know, ball is a Sphere.

Surface area of sphere = 4πr²
A = 4 * 3.14 * (1)²
A = 12.56 Ft²

In short, Your Answer would be 12.56 Ft²

Hope this helps!
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Explanation:

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8 0
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find the area and the circumference of a circle with radius 5yd. use the value 3.14 for like, and don’t round your answer to the
Zanzabum

Answer:

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Step-by-step explanation:

4 0
2 years ago
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Brad has eight more nickels than quarters. Altogether he has $6.10. how many of each does he have
wlad13 [49]

Brad have 19 quarters and 27 nickels.

Step-by-step explanation:

Given,

Total worth of nickels and quarters = $6.10 = 6.10*100 = 610 cents

One quarter = 25 cents

One nickel = 5 cents

Let,

x represent the number of quarters.

y represent the number of nickels.

According to given statement;

25x+5y=610     Eqn 1

y = x+8              Eqn 2

Putting value of y from Eqn 1 in Eqn 2

25x+5(x+8)=610\\25x+5x+40=610\\30x=610-40\\30x=570

Dividing both sides by 30

\frac{30x}{30}=\frac{570}{30}\\x=19

Putting x=19 in Eqn 2

y=19+8\\y=27

Brad have 19 quarters and 27 nickels.

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/9369548
  • brainly.com/question/9328925

#LearnwithBrainly

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Step-by-step explanation:

Your answer is correct

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Step-by-step explanation:

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