What type of triangle is shown below?

isosceles triangle
scalene triangle
right triangle
obtuse triangle

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

what golf ball

step-by-step explanation:

answer: 12

step-by-step explanation:

because yes

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4