Find the measure of the missing angle
a= 71 degree, c=69degree I 'm not sure how to go about in finding the missing angle. Could you please help?
To find the missing angle, we need to remember that the sum of the interior angles of a triangle is always 180 degrees.
So in this case, we have two of the angles given (a=71 degrees and c=69 degrees), and we need to find the missing angle, which we can call angle b.
Using the fact that the sum of the angles in a triangle is 180 degrees, we can set up the equation:
a + b + c = 180
Substitute the given values:
71 + b + 69 = 180
Combine like terms:
140 + b = 180
Subtract 140 from both sides:
b = 40
Therefore, the missing angle, angle b, is 40 degrees.