# Pythagoras' Theorem Triangle

• Apr 16th 2008, 07:28 PM
stellina_91
Pythagoras' Theorem Triangle
Write down the altitude in the special case where s=2b.
What type of triangle is this and what is its area?

• Apr 16th 2008, 07:29 PM
TKHunny
Equilateral

You tell us the area.
• Apr 16th 2008, 07:34 PM
stellina_91
Area = 1/2bh

= 1/2 x 2b x a

I have no idea, I'm sorry!(Crying)
• Apr 16th 2008, 07:40 PM
TKHunny
(Surprised)

What are you not getting? You have it. Simplify and you are done.

Do you see that it is equilateral?
• Apr 16th 2008, 07:46 PM
Isomorphism
Quote:

Originally Posted by stellina_91
Write down the altitude in the special case where s=2b.

Use pythogorus theorem to get the altitude first, then use it to obtain area fully in terms of b.
• Apr 16th 2008, 07:47 PM
stellina_91

This is an equilateral triangle with a = b x root 3 and area = b^2 x root 3.

I don't know how they got this.
• Apr 16th 2008, 07:59 PM
Isomorphism
Quote:

Originally Posted by stellina_91

This is an equilateral triangle with a = b x root 3 and area = b^2 x root 3.

I don't know how they got this.

Do you know Pythogorus theorem?
Can you see a right angled triangle in the figure?

Now apply Pythogorus theorem to that right angled triangle. And express a in terms of b.(Wink)
• Apr 16th 2008, 08:05 PM
stellina_91
Ohh I see now!! Thanks so much!! Sorry it took me while. (Worried)
• Apr 16th 2008, 08:08 PM
Isomorphism
Quote:

Originally Posted by stellina_91
Ohh I see now!! Thanks so much!! Sorry it took me while. (Worried)

(Yes) No problem. If you are stuck somewhere, do let us know (Hi)