Quincy is selling chocolate bars for his school's fundraiser. After selling 8 chocolate bars to his neighbors this afternoon, Quincy has sold a total of 83 chocolate bars. Determine an equation which represents the total number of chocolate bars (b) that Quincy had sold before selling the 8 chocolate bars to his neighbors and then solve it. Enter only the number of chocolate bars represented by b in this situation.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

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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.

you already gave the answer

step-by-step explanation: