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Home > GC > Chapter 2 > Lesson 2.2.2 > Problem 2-72

2-72.

For each diagram below, solve for . Explain what relationship from your Angle Relationships Toolkit you used for each problem.  

  1. Two adjacent angles together form a 90 degree angle. One angle is 6, x. The other angle is, 4 x + 10, degrees.

    What is the sum of the measures of the two angles in degrees?

  1. Two adjacent angles together form a straight line. The obtuse angle on the left is, 5 x + 13, degrees. The acute angle on the right is, 3 x + 7, degrees.

    What is the sum of the measures of the two angles in degrees?

  1. A triangle with interior angles of 3 x + 5 degrees on top, 2 x + 18 degrees at bottom left and 2 x + 17 degrees at bottom right.

    What is the sum of the angles in a triangle?

  1. A right triangle with interior angles of x and 30 degrees.

    How many degrees is the right angle?

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