Question

A right angled triangle has side lengths 5x cm, 12x cm and 13x cm. Write an expression for the triangle's area.

Answer 1

What's the formula for the area of a triangle?

Answer 2

1/2bh

Answer 3

That's right. In this case, what is the length of your base?

Answer 4

12x

Answer 5

okay... if that's the way you wanna go... what's your height?

Answer 6

5x

Answer 7

so... plug them into bh/2

Answer 8

yeah so, \[\frac{ 12x \times 5x }{ 2 }\]

Answer 9

Good. Now simplify

Answer 10

so \[30x\]?

Answer 11

don't forget you multiplied 2 x's.

Answer 12

oh so \[30x ^{2}\]

Answer 13

And that's it.
Nicely done.

Answer 14

haha thankyou, sorry not in maths mood :) thanks again

Answer 15

I figured. :)
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