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 is 12/9 in simplest form
Which of the following sums would be under the radical symbol to find the distance between the points (7, -1) and (-8, -9)?
What was one result of the shift in the U.S. population from majority rural to majority urban? tension between urban and rural cultures relief among rural peopl
what is equivalent to 72 inches
Water molecules exhibit a property which enables them to stick to each other. What is this property referred to as? Polarity Cohesion Adhesion
What 19th century American creation influenced urban architecture all across the world?
on a day when the air is still a windmill still possesses what type of energy? why?
a markdown that is greater than 99% but less than 100%
Which group was paid by the British to help fight the American Revolution? A) Hessians B) Spanish C) French D) Minute-men
Final velocity for 2.6 seconds