1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreas93 [3]
3 years ago
15

The Tetrahedron Superyacht designed by Jonathan Schwinge is a regular tetrahedron with edges 20 m long. The distance r from one

corner to the center of the base is 11.5m. What is the vertical height, h , of the tetrahedron

Mathematics
2 answers:
shusha [124]3 years ago
8 0
A tetrahedron is a triangular pyramid. It has four triangular faces and four vertices. 

In the question, we are told that the length of the edges are all equal = 20m and the length from one corner to the center of the base = 11.5m

We sketch a diagram of a tetrahedron with the given measurement as shown below

To find the height, we will use the Pythagoras theorem

20² = h² + 11.5²
h² = 20² - 11.5²
h² = 267.75
h = √267.75
h = 16.36 (rounded to two decimal places)

kati45 [8]3 years ago
6 0

Answer:

16.36

Step-by-step explanation:

You might be interested in
3. Tyler said this net cannot be a net for
Keith_Richards [23]

Agree..............

3 0
3 years ago
Line l has a slope of 98. The line through which of the following pair of points is perpendicular to l?
zysi [14]

m =( Y2 - Y1)/ (X2-X1)

m =( 3-(-5))/ (-6-3)

m = - 8/9

I am assuming you meant a slope of 9/8 in your original question, so the points perpendicular to I are answer D.


Perpendicular means the slope is opposite reciprocal of your first slope given.



8 0
3 years ago
The slope-intercept form of the equation of a line that passes through point (-3, 8) is y = -2/3x + 6. What is the point-
Elena-2011 [213]

y = \stackrel{\stackrel{m}{\downarrow }}{-\cfrac{2}{3}}x+6\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so hmmm then we know the slope of that line is -2/3, so we're really looking for the point-slope form of a line with a slope of -2/3 and that passes through (-3 , 8)

(\stackrel{x_1}{-3}~,~\stackrel{y_1}{8})\hspace{10em} \stackrel{slope}{m} ~=~ -\cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{8}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{(-3)})\implies y-8=-\cfrac{2}{3}(x+3)

3 0
2 years ago
Helppppp : 5×(2-x)+9-7x
TEA [102]
<span>5×(2-x)+9-7x
=5</span>×2-5<span>×x+9-7x
=10-5x+9-7x
=10+9-(5x+7x)
=19-12x

That's your solution. ^_^</span>
4 0
3 years ago
Read 2 more answers
What is the length of AA' ?
hram777 [196]
I hope this helps you

5 0
3 years ago
Read 2 more answers
Other questions:
  • How to simplify the fraction 9 50
    10·1 answer
  • I need help pleassee
    7·2 answers
  • Stephanie bought 3 pizzas for a total of $9.00. Which expression shows p, the cost of each pizza?
    12·1 answer
  • I need help pleaseee asap​
    10·2 answers
  • A
    14·2 answers
  • Which number is bigger 3.345 , 3.35 , 3.3
    15·2 answers
  • What is 25/85 in simplest form??
    7·2 answers
  • How much would each starburst weigh if 3 starburst weighs 1 ounce?
    8·2 answers
  • Write each equation in function notation, then solve the function for the given value.
    15·1 answer
  • EXTRA POINTS<br> x/4 ÷ 2/3 = 1/5 solve for x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!