iloveanimmals iloveanimmals
  • 25-05-2021
  • Mathematics
contestada

a ladder reaches the top of a 20 foot building. the ladder is 4.5 feet away from the building. how long is the ladder?

a 24.5 feet
b 19.5 feet
c 20.5 feet
d 3.5 feet

Respuesta :

SrRacciatti SrRacciatti
  • 26-05-2021

Answer:

C

Step-by-step explanation:

do that with pithagoras:

20² + 4,5² = x²

400 + 20,25 = x²

420,25 = x²

x = [tex]\sqrt{420,25}[/tex]

x ~ 20,5

Letter C: 20,5 feet

Answer Link

Otras preguntas

Which polynomial is prime? A. x^3 + 3x^2 – 2x – 6 B. x^3 – 2x^2 + 3x – 6 C. 4^x4 + 4x^3 –2x – 2 D. 4^x4 + 2x^3 –2x + 4
What does it mean when a wave's amplitude increases?
Which of the following statements in the best answer regarding training requirements for struck by hazard identification and prevention A) all of the answers
Match the correct economic term with each senario
Body composition is the measure of _
How does culture affect the identification and treatment of psychological disorders? Be sure to define culture and provide an example in your response.
During the 1960s, what was the organization known as VVAW
what seems to the focus of my country Tis of thee
What medium did guglielmo marconi help invent?
why did germany abandon their plans to invade britian? in 1941?​