meerkat18
meerkat18 meerkat18
  • 14-12-2016
  • Mathematics
contestada

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 nobillionaireNobley
  • 20-12-2016
a = 90 + 72 = 162 degrees
b = 180 - 162 = 18 degrees.
Answer Link
Kunchan
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
Answer Link

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