a right triangle has a hypotenuse of 10 feet and one leg that is 7 feet long how long is the other leg of the triangle

Step-by-step explanation:

he missing length of leg or hypotenuse of a given right triangle; to find the length of a diagonal of a square or rectangle; to find the length of a side of a square given the diagonal; to find the length of a side of a rectangle given the diagonal and the other side

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.