AE = 5 cm = base of a triangle. The other 2 sides are equal to 4 cm. Show, by calculation, that FX = 3.12 cm (correct to 2 decimal places), where FX is the height of a triangle (and the angle is 90 degrees).
Thank you for your help.
Last edited by JadeKiara; Jul 5th 2009 at 10:46 PM.
Well, I know the height of a triangle is found by: a^2 = b^2 + c^2.
How can I show, by calculation, that FX = 3.12 cm (correct to 2 decimal places), where FX is the height of a triangle?
So, if the base is 5 cm, and each of the other two sides are 4cm, then you would draw a vertical line from the centre of the base to the vertex. Then using Pythagorus you would have which