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 effect did the Punic Wars have on small Roman farmers?
boga tor man fiafjadnkfadjkb ifasjfnk
Please help me !!!!!!!!
The main reason that it's important to test only one variable at a time is so that
Write out the Spanish alphabet. Which letters sound the same as the English alphabet? Which sound different? Read More >>
help please? ty ty :)
Please help ASAP! What was the agreement between Britain and the United States called that stated neither would seek territorial gain from the war? A) Good N
How many distinguishable 7 letter​ "words" can be formed using the letters in alabamaalabama​?
The Math Club is raising money for the local Humane Society Shelter and can raise $750 in 24 days. The National Forensic League is also raising $750 for the lo
A pizza delivery shop averages 20 minutes per delivery with a standard deviation of 4 minutes. What is the probability that a pizza takes less than 15 minutes t