A ladder is leaning against a vertical wall. The ladder is 9 meter hig – McqOptions

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1.	A ladder is leaning against a vertical wall. The ladder is 9 meter high. When the foot of the ladder is taken 3 meter awaythen the top of the ladder reach equal to the bottom of the wall. What is the height of wall?
A.	√46 meters
B.	√45 meters
C.	√20 meters
D.	√30 meters
Answer» C. √20 meters

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