Asked by frimpong

A ladder 9cm long leans against a wall if the foot of the ladder is 4.5cm away the wall how far up the wall does the ladder reach.
Answered by Ms. Sue
9 cm ladder?

Are you sure?

A 3" by 5" file card is almost 9 cm across.

Answered by bobpursley
It is a ladder for lame grasshoppers.

height up= sqrt(81-4.5^2) cm=7.79cm

grasshopper also needs wings clipped, 8 cm is not very high.
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