meerkat18 meerkat18

14-12-2016
Mathematics

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A ramp form the angle shown at the right what are the values of a and b?

A ramp form the angle shown at the right what are the values of a and b class=

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nobillionaireNobley nobillionaireNobley

20-12-2016

a = 90 + 72 = 162 degrees
b = 180 - 162 = 18 degrees.

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Kunchan Kunchan

21-12-2016

Total value of the inner angle is 180
So
b + 90 + 72 = 180
b = 180 - 162
b = 18

But
a + b = 180
a + 18 = 180
a = 162

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