samuelerlikhman samuelerlikhman
  • 02-02-2019
  • Mathematics
contestada

In triangle △ABC, ∠ABC=90°, BH is an altitude. Find the missing lengths. AC=26 and CH=8, find BH.

Respuesta :

frika
frika frika
  • 17-02-2019

Answer:

12

Step-by-step explanation:

In the right triangle ABC,

[tex]BC^2=CH\cdot AC.[/tex]

Thus,

[tex]BC^2=26\cdot 8=208,\\ \\BC=\sqrt{208}=4\sqrt{13}.[/tex]

In the right triangle BHC, by the Pythagorean theorem,

[tex]BC^2=BH^2+CH^2.[/tex]

Then

[tex]BH^2=BC^2-CH^2,\\ \\BH^2=(\sqrt{208})^2-8^2=208-64=144,\\ \\BH=12.[/tex]

Ver imagen frika
Answer Link

Otras preguntas

what is 200 increased by 10%
A flashbulb contains magnesium and oxygen before use and magnesium oxide afterward, but its mass does not change.
Why might speakers in highly charged situations need to use emotional appeals cautiously, even sparingly?4?
One key role marketing plays in a​ company's strategic planning is to​ __________.
How to translate a problem into an equation when dealing with perimeter and trying to find the length?
Where were school classes held for the evacuated children in ww2
Compare a human's body's changes during exercise to the changes that occur in a dog's body when it is exposed to a hot environment. Explain. *Yes I know this i
What number of fe atoms and what amount (moles) of fe atoms are in 500.0 g of iron?
Doreen is a cosmetic sales person. her commission rate is 13 1/2%. if her monthly sales was $4,230.00 what was her monthly commission?
What type of statement is there are 32 beakers on the shelf