The sum of angles P and Q is 126°.
Write and solve an equation to determine the value of x.
What is the measure of angle R?
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sum of the angles of a triangle is 180°.
=> P + Q + R = 180°
=> 126° + R = 180° (Given, sum of angles P and Q is 126°)
=> R = 180° - 126°
=> 9x = 54° (Given, R = 9x)
=> x = 54/9 = 6°
therefore, R = 9x = 9 X 6 = 54°
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