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Mathematics 21 Online
OpenStudy (anonymous):

When an extension ladder rests against a wall it reaches 4 m up the wall. The ladder is extended a further .8m without moving the foot of the ladder and it now rest against the wall 1 m further up. Find a. the length of the extended ladder=6.08 b. the increase in the angle that the ladder makes with the ground now that the ladder is extended just need b

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