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

## Answer this Question

## Related Questions

- MATHS,7TH CLASS - A RIGHT ANGLED TRIANGLE ABC IS GIVEN,WHERE AB IS 5CM,AC IS ...
- Maths - triangle ABC is right angled at A. AD is perpendicularto BC. If AB= 5cm,...
- mathematics - a right angled triangle abc whose sides are 5cm,12cm and 13cm ...
- math - B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The...
- MATH MS.SUE HELP PLEASE! - Could somebody help me I don't understand any of this...
- maths-urgently needed - In right angled triangle ABC angle B=90 degree and AB= ...
- maths- - Find the area of triangle . in a right-angled triangle, the length of ...
- Math - In above triangular prism,ab=3cm,ac=4cm,bc=5cm and cd12 cm,show that ...
- math - The coordinates of (triangle) ABC are A(-3,-1 ) , B( 5,1 ) and C (2,4) (i...
- Trigonometry - Triangle ABC is a right triangle with right angle at C. CD is ...

More Related Questions