An ice hockey rink is in the shape of a rectangle, but with rounded comers. The rectangle is 200 feet long and 85 feet wide. Ignoring the corner rounding, what is the distance around a hockey rink?
A.570 ft
B.285 ft
C.485 ft
D.370 ft

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step-by-step explanation:

answer: what statements

step-by-step explanation if you write the statements down then i could you.

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.