Lesson 17. Quadrilateral

Mixed angle problems.

EXAMPLE:

Find angles  x  and  y.

x = 68⁰ (angles in a quadrilateral add up to 360⁰)

y = 112⁰ (angles on a straight line add up to 180⁰)

This line across from one corner to another is called a diagonal.

Test lesson 17

• Test 1
• Test 2
• Test 3