QUICKK Which of the following will create a right triangle (1, 4, 7) (5, 12,13) (4, 7, 11) (3, 9, 10)

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation:

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.