5. A ladder leans against a vertical wall with its top 7 ft above the horizontal ground. If the top of the ladder is pulled away a distance of 1 ft from the wall, the top falls down a distance of 5 ft down the wall. Find the length of the ladder. A) 20 ft B) 23 ft C) 21 ft D) 22 ft

5. A ladder leans against a vertical wall with its top 7 ft above the horizontal ground. If the top of the ladder is pulled away a distance of 1 ft from the wall, the top falls down a distance of 5 ft down the wall. Find the length of the ladder. A) 20 ft B) 23 ft C) 21 ft D) 22 ft

Elementary Geometry for College Students

6th Edition

ISBN:9781285195698

Author:Daniel C. Alexander, Geralyn M. Koeberlein

Publisher:Daniel C. Alexander, Geralyn M. Koeberlein

Chapter9: Surfaces And Solids

Section9.1: Prisms, Area And Volume

Problem 38E: In excavating for a new house, a contractor digs a hole in the shape of a right rectangular prism....

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Question

5. A ladder leans against a vertical wall with its top 7 ft above the horizontal ground. If the top of the ladder is pulled
away a distance of 1 ft from the wall, the top falls down a distance of 5 ft down the wall. Find the length of the
ladder.
A) 20 ft
B) 23 ft
C) 21 ft
D) 22 ft
6. A regular hexagon has a side whose length is 20 cm. Calculate its area.
A) 1054.76 cm?
B) 1039.23 cm²
C) 1221.66 cm²
D) 1136.56 cm?

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