Question

angle acb=90 and ad=bd ca=12cm and cd=6.5cm find area of triangle ACB

Answer 1

as it is a right angle triangle with angle ACB = 90 degree

Also it is given that,    Sides  AC = 12 Cm

And                                        CD = 6.5 Cm

We know in a right angle triangle
 
Area = 1/2 * (Base * Hiegth)

In triangle ABC, 
                                Area = 1/2 * 12 * 6.5
                                        = 0.5 * 12 * 6.5
                                        = 39 Cm^2
So the area is 39 Cm^2