In the figure above, what is the ratio of the measure of angle B to the measure of angle A?
2 Explanations
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Mohd Halim Bin Hisyam
In the question they did not specify, the triangle is a right triangle, where the angles within a right angle triangles are 90, 60, 30 degrees respectively. As such, this assumption will result to a wrong answer.
Sum of all internal angles of a triangle must be 180
(this is a 90 deg triangle)
Hence, Y + (Y + 10) + 90 = 180
Y = 40
angle B = Y = 40
angle A = (Y + 10) = 50
2 Explanations