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

1. What is the algebraic expression for the following word phrase: The quotient of 7 and the sum of 3 and z? A. 3-z ------ 7 B. 7 ---
If a manager chooses inappropriate goals, but makes good use of resources to pursue these goals, it results in:
Machiavelli addressed his book to a prince. how do you think this fact shaped the book
On which continent would you not find any non-human primates living in the wild? a. australia b. asia c. africa d. south america
An element has three naturally occurring isotopes. Use the information below to calculate the weighted average atomic mass of the element, showing both the setu
470,809 mi express in an integer
who did the hurons make a alliance with ??
A retriever would most likely be used for what type of hunting?
What is the total surface area of this composite solid ?
When is the sum to two negative mixed numbers an integer?