# Math Help - Help

1. ## Help

If the adjacent side of a right angled triangle is 5√3 and the opposite side is 8.8 what is the length of the third side (ie the hypotenuse)

thanks

2. Originally Posted by gracey
If the adjacent side of a right angled triangle is 5√3 and the opposite side is 8.8 what is the length of the third side (ie the hypotenuse)

thanks
Use the Pythagorean Theorem: $a^2+b^2=c^2$ where c is the hypotenuse.

3. so 5√3² + 8.8² = c

then what ?

4. Originally Posted by gracey
so 5√3² + 8.8² = c

then what ?
$5\sqrt{3}^2 + 8.8^2 = c^2$

$75 + 77.44 = c^2$

$\sqrt{75 + 77.44} = c$

$c = 12.347$