All categories

3 years ago

Find the surface area of the figure. Use 3.14 as an approximation for pi.

Mathematics

1 answer:

GrogVix [38]3 years ago

5 0

Answer:

239.34 ft²

Step-by-step explanation:

The lateral surface area of the entire cone is 188.40 ft² and the lateral surface area of the missing cone is 112.34 ft².

Therefore, the lateral surface area of the given stand cut from the right circular cone is (188.4 - 112.34) = 76.06 ft²

Hence, the total surface area of this given stand cut from the right circular cone = 76.06 + area of the two horizontal surfaces at top and at bottom.

= 76.06 + π × 4² + π × 6²

= 76.06 + 3.14(16 + 36)

= 76.06 + 163.28

= 239.34 ft² (Answer)

You might be interested in

Margarita traces a circle with a radius of 20 centimeters like the one shown below. She will color in the shaded region. What is

lana66690 [7]

Answer:

314 cm ^ 2

Step-by-step explanation:

First do, 3.14 x 20 ^ 2

3.14 x 20 ^ 2 = 1,256

Then do, 1,256/4

1,256/4 = 314

Why 4?

This part of the circle is 1/4 of the entire circle.

What does ^ mean?

It's just a way to say to the power of on a computer.

Hope this helps! :)

7 0

3 years ago

Suppose a plane flies 48 miles in 12 minutes. The relationship between miles flown, x, and minutes flown, y, by the plane can re

Molodets [167]

Answer:

112.

Step-by-step explanation:

5 0

3 years ago

Please answer correctly !!!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

Shkiper50 [21]

X° = 180° - 160°
= 20°
x = 20

7 0

2 years ago

Solve for x: 6x-4 over 3+2x=5/6

viktelen [127]

$Domain:\\\\3+2x\neq0\to x\neq-1.5\\\\\dfrac{6x-4}{3+2x}=\dfrac{5}{6}\qquad\text{cross multiply}\\\\6(6x-4)=5(3+2x)\qquad\text{use distributive property}\\\\(6)(6x)+(6)(-4)=(5)(3)+(5)(2x)\\\\36x-24=15+10x\qquad\text{add 24 to both sides}\\\\36x=39+10x\qquad\text{subtract 10x from both sides}\\\\26x=39\qquad\text{divide both sides by 26}\\\\x=\dfrac{39}{26}\\\\x=\dfrac{39:13}{26:13}\\\\\boxed{x=\dfrac{3}{2}}\in D$

5 0

3 years ago

a person pays a loan of Rs. 3900 in monthly installments each in installment being less than the former by Rs. 20 ,the amount of

musickatia [10]

Answer:

15 installments

Step-by-step explanation:

3900 = Σ $\left \ {{x=n} \atop {x=1}} \right.$ 400 - 20*(n - 1)

4 0

2 years ago

Find the surface area of the figure. Use 3.14 as an approximation for pi.​

Find the surface area of the figure. Use 3.14 as an approximation for pi.