Johny needs a loan for his last year of school. The total loan amount will be $12,000. The current interest rate is 4.5% on a 10 year loan or 5.5% on a 15 year loan. Loan A (10 years) results in monthly payments of $124.37. Loan B (15 years) results in monthly payments of $98.05.

10cm

step-by-step explanation:

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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.