zulqurnain
zulqurnain zulqurnain
  • 02-04-2017
  • Mathematics
contestada

ABC IS a right angled triangle at B and D is a point on BC. If AD=18cm , BD=9cm and CD = 4 cm, find AC

Respuesta :

ElenaClairmont
ElenaClairmont ElenaClairmont
  • 02-04-2017
[tex]AB = \sqrt{ AD^{2} - BD^{2} } = \sqrt{243} = 9 \sqrt{3} [/tex]
[tex]AC = \sqrt{ AB^{2} + BC^{2} } = \sqrt{412} = 2 \sqrt{103} [/tex]
Answer Link

Otras preguntas

Use the diagram to solve for segments SW and WQ. Show your work and/or explain how you determined the answer
what is the axis of symmetry
Which of the following does not correctly describe basic regulation of digestive activity? a. Digestive effectors are smooth muscle and glands. b. conscious neu
Find the nth term of 1,5,9,13,17
How was Barbara Jordan's career similar to Althea Gibson
David has opened the can. David ha abierto la lata. David ha abrido la lata. David has abrido la lata. David has abierto la lata.
What are the main causes of deforestation? Check all that apply!! A) air pollution B) mining C) cattle ranching D) water pollution E) logging
What is the meaning of the figurative language in these lines?
What question does the adverb clause answer. I’ll agree to your proposal because I have no other choice.
What’s this? HURRY!!