Question

A 9m ladder is placed against a wall.

The foot of the ladder is 1.5m from the foot of the wall.
How far up the wall does the ladder reach?

any help would be appreciated ​

Answer 1

To find this out you use a^2 + b^2 = C^2 you would place the 1.5 as a and the 9 in C. Then you solve the problem, which is 1.5^2 +b^2 = 9^2. In case you didn’t know or sum ^2 is squared. Hope this helps

Answer 2

b=8.9m

Explanation:

you would need to use Pythagoras theorem

a²+b²=c²

as we know c=9m and a=1.5m we need to find b so you would have to rearrange the equation

b²=c²-a²

b²=9²-1.5²

b²=81-2.25

b²=78.75

b=√78.75

b= 8.9m (1DP)