9 months ago

Find the surface area of this composite solid.

Mathematics

1 answer:

svetoff [14.1K]9 months ago

4 0

Answer: C, 93m^2

Step-by-step explanation:

first step is to find the surface area of the base. it's 3x3, so that would be 9m^2. the sides of the rectangular prism are 5x3, so one side is 15m^2. there are 4, so 15x4=60m^2. now for the top, which is a triangular prism. each side has a height of 4 and a base of 3. the area of a triangle is 1/2bh, so 1/2(3)(4), which is 6. 4 of these makes 24 m^2. add up all of final numbers to get 9+60+24. this comes to 93m^2, or C.

You might be interested in

What i the distance of A(0, 2), B(−3, 8)

igomit [66]

I HOPE IT WILL HELP YOU.

Have a great day ahead.

Thank you.

^ - ^

7 0

2 years ago

Select the type of equations.<br> equivalent<br> inconsistent<br> consistent

ZanzabumX [31]

The answer is consistent

8 0

2 years ago

The diagram shows the dimensions of a teepee. Find the volume of the building to the nearest cubic unit. Use 3.14 for pi.

LekaFEV [45]

The volume of a cone uses the following formula:

$V = \pi r^{2} \frac{h}{3}$

Our diameter is 20 feet, so divide this by 2 to find the radius:

$20 \div 2 = 10$

We now have all of our values need to fill in the formula. Plug in these values:

$\pi = 3.14, r = 10, h = 17$

$3.14 * 10^{2} * \frac{17}{3}$

$3.14 * 100 * 5.67$

$314 * 5.67 = 1780.38$

The volume of the cone is 1780 cubic feet.

7 0

2 years ago

Which one is it? need help please

klio [65]

When x = - 4 then
y = 1/2(-4) -6
y = -2 - 6
y = -8
solution (-4, -8)
answer is
B. (-4, -8) second choice

3 0

3 years ago

857,288 - 38,927 us my question

Ganezh [65]

The answer is 818,361!

7 0

2 years ago

Read 2 more answers