3 years ago

What is the surface area of a triangular pyramid if each face has an area of 80 m2?

Mathematics

1 answer:

TiliK225 [7]3 years ago

7 0

There are 4 sides in a triangular pyramid. So just multiply 80m2 by 4
80×4=24

You might be interested in

T÷5/12= -3/10<br> Thank you if you help :)

skelet666 [1.2K]

Answer:

t = -1/8.

Step-by-step explanation:

t / 5/12 = -3/10 Invert the 5/12 and multiply:

12t / 5 = -3/10

Cross multiply:

12t * 10 = 5 * -3

120t = -15

t = -15/120 = -1/8.

7 0

3 years ago

This so fking confusing

love history [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Cindy claims that 4^x/12^x = 1/3<br> What is a single-digit whole number that supports her claim?

Lana71 [14]

Answer:

x=1

Step-by-step explanation:

6 0

3 years ago

Which of the following is a negative aspect of wind power?

harina [27]

Answer:

C is the answer, as wind turbines are more expensive

8 0

2 years ago

Evaluate the following integral in cylindrical coordinates triple integral 1/(1+x^2+y^2) dzdxdy z=0..2 y=0..square root(1-x^2) x

sertanlavr [38]

In cylindrical coordinates, we take

$x=r\cos\theta$

$y=r\sin\theta$

$z=z$

so that $\mathrm dx\,\mathrm dy\,\mathrm dz=r\,\mathrm dr\,\mathrm d\theta\,\mathrm dz$ .

We have

$1+x^2+y^2=1+r^2$

and the integral is

$\displaystyle\int_0^2\int_0^\pi\int_0^1\frac r{1+r^2}\,\mathrm dr\,\mathrm d\theta\,\mathrm dz=\frac{\ln2}2\int_0^2\int_0^\pi\mathrm d\theta\,\mathrm dz=\boxed{\pi\ln2}$

8 0

3 years ago