an equilateral triangle has a side length of 20 feet. determine the length of an altitude of the triangle

Mathematics

1 answer:

qwelly [4]3 years ago

4 0

Answer:

20 feet

Step-by-step explanation:

I believe that since it is an equilateral triangle, all sides are equal, making 20=20

You might be interested in

On the Richter scale, a great earthquake is 10 times stronger than a major one, and a major one is 10 times stronger than a larg

Lina20 [59]

it is 100 times because you have to time 10 times 10 and you get a 100

5 0

2 years ago

What’s 3 times 72 in expanded Form?

Dominik [7]

200+ 10 + 6= 216

...........................................

4 0

2 years ago

Read 2 more answers

Pls pls help<br> Show work :)

Natasha2012 [34]

9514 1404 393

Answer:

31.243 units

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationships between sides and angles in a right triangle. Using the attached figure, it is convenient to find the length of BE as an intermediate step in the solution.

Sin = Opposite/Hypotenuse

sin(30°) = BE/100

BE = 100·sin(30°)

Then ...

Tan = Opposite/Adjacent

tan(58°) = BE/x

x = BE/tan(58°) = 100·sin(30°)/tan(58°)

x ≈ 31.243 . . . . units

_____

<em>Comment on the figure</em>

The intermediate problem in creating the figure was to locate point D. That was accomplished by locating point C on a line at an angle of 58° CCW from the horizontal, using point B as a center. Then D is the intersection of BC with the x-axis. BE is drawn perpendicular to the x-axis.