A plank 6m long leans against a vertical wall so that the foot of the plank is 4m away from the wall. A lizard climbs 2m up the plank. Calculate the horizontal distance between the lizard and the wall.

Step-by-step explanation:

Given

Length of the plank is

Foot of the flank is away from the wall

Lizard climbs 2 m up the wall

from the figure, the two triangles are similar

So, the distance from the wall is

answer:

your answer is: c. 196 7/8 in^3.

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