Question

A ladder is placed in such a way that its foot is 15 m from a wall and its top reaches a window 20m above the ground determine length of ladder​

Answer 1

Answer:

$using \:pythagoras\: theorem$

Step-by-step explanation:

${Hypotenuse}^{2}  = {Base}^{2} + {Perpendicular}^{2}$

$let \: hypotenuse = x$

${x}^{2} = {20}^{2} + {15}^{2}$

${x}^{2} = 400 + 225$

${x}^{2} = 625$

$x = \sqrt{625}$

$x = 25$