Question

Given that a=5cm, b=4cm, work out x for a right angled triangle. a is the longest side and b is the height. x is the base.

Answer 1

Step-by-step explanation:

a=5

b=4

x=?

by using Pythagoras theorem,we see that

(a)^

$a {}^{2} - b {}^{2} = x {}^{2}$

$5 {}^{2} - 4 {}^{2} = x {}^{2}$

$25 - 16 = x {}^{2}$

$9 = x {}^{2}$

$\sqrt{9 } = x$

$= 3$

therefore x=3