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

What was the purpose of the Open Door Policy?
A number s is subtracted from seven. When the result is divided by three, the quotient is two. What is the number?
5 biscuits cost 30p altogether how much do 7 biscuits cost
Explain in your own words why the boundary between the African and Eurasian plates isn't clear.
Write the ratio as a fraction in simplest form. 10 ft to 5 yds
how many inches are in 13 and a half feet
What is the importance of membrane structure and function in the organization of living processes within cells.
Ross needs to buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage e
what is 66 2/3% in decimal form
0.2(x+50)-6=0.4(3x+20)