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

how do landforms affect human life
Use a transformation to solve the equation. m+12.6 = –24 a. m = –36.6 b. m = –12.2 c. m = 12.2 d. m = 36.6
Plants transform some of the electromagnetic energy from the sun into what?
mary buys a reel of thread for sewing. There are 10 m of thread on the reel. she uses 210 cm. How much reel is left in cemtimeters
What is the simplest form for the fractions 12/30,12/20 and 21/35
A bus travels 20 km in 30 minutes. what is the average speed of the bus?
The absorption of glucose into the cell leads to the movement of water into the cell. Explain how
what part of the brain moitors bodybtempreture
Sarah's craft project uses pieces of yarn that are 1/8 yard long she has a piece of yarn that is 3 yards long how many 1/8 yard pieces can she cut and still hav
The infinitive is the most versatile verb form because it can be used as