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
grin007 [14]
3 years ago
13

Can someone pls help me? I don't understand how to do this. Would really appreciate it! ​

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answers:

  • a = 21
  • b = 42*sqrt(2)
  • h = 14*sqrt(2)

================================================

Explanation:

There are 3 right triangles here. They are all similar triangles allowing us to form the proportion

7/h = h/56

which solves to...

7/h = h/56

7*56 = h*h

392 = h^2

h^2 = 392

h = sqrt(392)

h = sqrt(196*2)

h = sqrt(196)*sqrt(2)

h = 14*sqrt(2)

Note: h is the geometric mean of 7 and 56.

---------------------

Use the pythagorean theorem to solve for 'a'. Focus on the smaller triangle on the left

7^2 + h^2 = a^2

7^2 + (sqrt(392))^2 = a^2

49 + 392 = a^2

441 = a^2

a^2 = 441

a = sqrt(441)

a = 21

---------------------

Then we can find b. Again use the pythagorean theorem. Focus on the largest right triangle this time.

a^2 + b^2 = (7+56)^2

21^2 + b^2 = 63^2

441 + b^2 = 3969

b^2 = 3969 - 441

b^2 = 3528

b = sqrt(3528)

b = sqrt(1764*2)

b = sqrt(1764)*sqrt(2)

b = 42*sqrt(2)

You might be interested in
An angle passes through the point (-7,-5). What is the compass heading of this angle?
umka21 [38]
To find the angle use arc tan (-5/-7) which simplifies tips arctan(5/7). arc tan is tan to the power -1, which is also called inverse tan. The heading of the angle, if you drew this out on a graph your angle would be in the third quadrant and therefore the heading is south of west.
3 0
2 years ago
The coordinates of the point Care (6,5) and the coordinates of point D are
Komok [63]

Answer:.........

Step-by-step explanation:

6 0
2 years ago
What is the missing angle in this triangle?
Masteriza [31]

Answer:80 degree angle

Step-by-step explanation:

There are always 180 degrees so you subtract the 2 others and you get the angle (60+40-180)

5 0
3 years ago
During a game, Dennis lost 50 points in the first round and then lost 75 more points in the second round. Write an addition expr
zysi [14]

Answer:

-125

Step-by-step explanation:

add 50 and 75 =125 make in negative

5 0
2 years ago
PLEASE HELP ME IM SO CONFUSED!!! i need answers 10-12
zimovet [89]

Answer: Heyaa! ~

   10. 8√2

   11. 2h²√3

   12. 2h³√5k⁴

Step-by-step explanation:

    <em>- Lets solve it together! </em>

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Hopefully this helps you!

3 0
2 years ago
Other questions:
  • sam filled 6 glasses with six glasses with two 2/3 liters of juice in each glass. how many liters of juice did he use ?
    10·1 answer
  • IN 10 MIN.a heart can beat 700 times. at this rate in how many min. will a heart beat 140 times?At what rate can a heart beat
    9·1 answer
  • D. 4.0<br> Geometry math question no Guessing and Please show work
    12·1 answer
  • G(x)=\sqrt{x+3}g(x)= x+3 ​ g, left parenthesis, x, right parenthesis, equals, square root of, x, plus, 3, end square root What i
    11·1 answer
  • The sum of the measures of two exterior angles of a triangle is 264° what is the measure of the third exterior angle
    5·2 answers
  • Suppose the 3 schools have succeeded in raising the following amounts of money on day 8: school A:5,600 school B:6,500 school C:
    10·1 answer
  • Find the area of the figure
    14·1 answer
  • FIND THE AREA OF THE SHADED REGION.
    11·1 answer
  • he A water pail in your backyard has a small hole in it. You notice that it has drained a total of 1.5 liters in 4 days. What is
    9·1 answer
  • How many pieces of ribbon each 6cm long can be cut out from a roll of ribbon 24 cm long
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!