Answer:
0.89 m is the answer
Step-by-step explanation:
the wall, the ground and portion of pipe form a right angle triangle with pipe portion being the hypotenuse.
for a right triangle
[tex]{hypotenuse}^{2} = {base}^{2} + {height}^{2} [/tex]
here we have base = 3m and height = 2m.
thus
[tex] {h}^{2} = {3}^{2} + {2 }^{2} \\ = 9 + 4 \\ = 13 \\ h = \sqrt{13} [/tex]
portion of pipe overhanging = 4.5 - sqrt (13)
= 4.5 - 3.61
= 0.89 m
