If goal post is rectangle shaped then u can see distance of bc base is 3 times of its sides(distance from top to ground)(imagine aectangle)
So let x be the distance so bc=3x
Perimeter is given now u just put values in a formua of perimeter
To the nearest whole number it would be 1
<span>360
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20 + 18 your welcome enjoy your answer :D</span>
Complementary means the two angles add up to 90 degrees. Do 90 - 79 to find the other angle.
It's 11 degrees.