Before you combine similar terms(Hint: Reduce this problem to only 2 variables, say x and y. Then go back to binomial coefficients and see the different ways we arrived at them. Can you generalize now to 3?

this is answer of 144 cubic meters

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

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.