The Bells are adding a new room to their house. The room will be a cube with volume 4,913 ft3. They are going to put in hardwood floors, and the contractor charges $10 per square foot. How much will the hardwood floors cost?

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

135

step-by-step explanation:

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