Posted by **anonymus** on Wednesday, November 30, 2011 at 12:35pm.

Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso findthe length of AD.

- Maths -
**Steve**, Wednesday, November 30, 2011 at 3:40pm
I hope you can figure the area of ABC with no trouble.

Using similar triangles, because angle B is the same in both, and both are right triangles,

12/13 = AD/5

AD = 60/13

- Maths -
**anirudh the great**, Monday, January 14, 2013 at 10:53am
Base of the triangle =13cm

altitude of the triangle=12cm

Area of the triangle=1/2(b)(a)

' =1/2(5)(12)

=30cm2

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