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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?
1.9k views
4 votes
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?-example-1
User Bayramucuncu
by
7.6k points

2 Answers

6 votes
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
User MouseWanted
by
8.8k points
4 votes
a = 90 + 72 = 162 degrees
b = 180 - 162 = 18 degrees.
User Chris Jones
by
8.3k points
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