All categories

1 year ago

Find the surface area of a water tower that is 40 feet tall and has a diameter of 20 feet.

Mathematics

1 answer:

Ganezh [65]1 year ago

6 0

Answer:

The surface area is 3140 feet².

What is Surface Area?

Surface area is the amount of space covering the outside of a three-dimensional shape.

Given that:

Diameter = 20 feet

radius = 20 ÷ 2 = 10 feet

Now, Surface area will be,

=2πr²+ 2πrh

= 2 × 3.14 × (10)² + 2 × 3.14 × 10 × 40

= 6.28 × 100 + 6.28 × 400

= 628 + 25.12 × 100

= 628+ 2512

= 3140 feet²

hence, the surface area is 3140 feet².

Step-by-step explanation:

You might be interested in

Brenda buys a shirt for $40. She has a coupon for 25% off. What is 25% of $40?

tia_tia [17]

Answer:

Step-by-step explanation: hehejejehjejejehehhejehehejehehheehejhehejehejejejejejjejejejejejhhehejejjejejejeejehhehehe

8 0

3 years ago

Read 2 more answers

A race car driver won a 300 mile race with a speed of 194 miles per hour. Find the drivers time.

agasfer [191]

Time = distance / speed

time = 300/194
time = 1.546 hrs...not sure if u need that rounded...if so, then it is 1.5 hrs or 1 1/2 hrs

8 0

3 years ago

. Fiona has $1.20 with which to buy some ribbon.The ribbon is on sale for $0.08 per foot.How many feet of ribbon can Fiona buy

gogolik [260]

Respuesta: 4.5 pies que puede comprar si tiene $ 11.25

Explicación paso a paso:

Dado que hemos dado que

Costo de los dulces por pie = $ 2.50

Dinero total que gastó en dulces = $ 11.25

Sea x el número de pies que puede comprar

Ahora, según la pregunta, obtenemos eso,

Entonces, 4.5 pies que puede comprar si tiene $ 11.25.

8 0

3 years ago

Simplify the expression to one number using order of operations:

geniusboy [140]

<h2><u>COMBINED OPERATIONS</u></h2><h3>Exercise</h3>

First, let's solve the subtraction (in parentheses):

$\mathsf{\dfrac{-8\left(2-6\right)}{2}}$

$\mathsf{\dfrac{-8(-4)}{2}}$

Now, let's solve the multiplication. Remember: in multiplication, two negative numbers will give a positive number:

$\mathsf{\dfrac{-8(-4)}{2}}$

$\mathsf{\dfrac{32}{2}}$

Finally, let's solve the division:

$\mathsf{\dfrac{32}{2} = 16}$

<h3><u>Answer</u>: 16</h3>

5 0

3 years ago

Write an equation of the line passing theough the point (4,-1) and perpendicular to the line y=2x-5.

Gwar [14]

Icons ojzo kook oak am

7 0

3 years ago