answer my question ......
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the ladder forms a right angled triangle with the building and ground.
in the triangle the length of the ladder is the hypotenuse.
height of the wall
= √[(length of ladder)²-(distance from the foot of building)²
= √[(41)²-(9²)]
= √[1681-81]
= √[1600]
= 40
The height of the building is 40m.
in the triangle the length of the ladder is the hypotenuse.
height of the wall
= √[(length of ladder)²-(distance from the foot of building)²
= √[(41)²-(9²)]
= √[1681-81]
= √[1600]
= 40
The height of the building is 40m.
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