Find the measure of each angle in triangle abc. a=50-x b=9x-40 c=90 a) a=130 b=60 c=90 b) a=60 b=130 c=90 c) a=40 b=50 c=90 d) a=50 b=40 c=90 no guessing and show work you.

recall that the sum of all interior angles in a triangle is 180°.

therefore, a + b + c = 180°

step-by-step explanation:

ask goog great chance of finding the solution there

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb