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

Arturo invests $2700 in a savings account that pay 9% interest, compounded quarterly. If there are no other transactions, when will his balance reach $4550?
Raphael graphed the system of equations shown. y = – 3 y = x – 0.8 What is the best approximation for
help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Colorado plateau is an example of what mountains
HELP ME!! SPANISH!! complete the sentence with the correct indirect object pronoun (me, te, le, etc.) and the correct form of the verb gustar. ¿Qué ___________
when consumers seek to buy goods at the best possible price they are exercising self-__________.
If you believe a person is having a stroke you should
The perimeter of a triangle is 547.2 feet and the sides are in the ratio of 42:45:27. Find the area of the triangle.
Could someone help me please, also it would be super helpful of you if you also showed the work so i can figure out the rest of the problems.
What is cause-effect?