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Please help quickly! Zoey wants to know the height of a wall. She places a mirror on the ground between her and the base of the wall, so she can see the top of the wall in the mirror. The mirror is 6 ft from Zoey and 21 ft from the base of the wall. Zoey is 4 ft tall. The wall is ___ ft high.

Please help quickly! Zoey wants to know the height of a wall. She places a mirror-example-1
User Msapkal
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The height of the wall is 15 feet. (21 - 6 = 15)
User Night
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