Find the length of a ladder that is nine metres from a wall and reaches a height of 12cm. Please explain well . Thank you
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Originally Posted by frankpham12 Find the length of a ladder that is nine metres from a wall and reaches a height of 12cm. Please explain well . Thank you Draw a diagram. There's a right-triangle. Use Pythagoras' Theorem to solve for the length of the hypotenuse.
And be careful, your units should be the same. Recall that $\displaystyle 1~\text{cm} = 10^{-2}~\text{m}$
Originally Posted by mr fantastic Draw a diagram. There's a right-triangle. Use Pythagoras' Theorem to solve for the length of the hypotenuse. thanks a lot
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