A wheelchair ramp rises 1.5 feet for every 18 feet of horizontal distance it covers. Find the rate of chance of the ramp.
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An isosceles triangle is when 2 angles are the same measure. an triangles angle equal to 180 degrees. therefore angle A is 80 degrees as well as angle B equals 80 degrees. since the angles of a triangle equal to 180 you subtract the two known angles to find angle C. So 180-80-80 which equals to 20.
Therefore angle C=20 degrees
Therefore angle C=20 degrees