This video tutorial covers solving for unknown angles using equations, focusing on vertical, supplementary, and complementary angles. It introduces solving for angles around a point using 360 degrees and provides step-by-step examples to find unknown angles X and Y. The tutorial emphasizes the importance of practice and understanding the relationships between angles, such as those on a straight line or around a point.

What is the main focus of lesson three in module six?

• Learning about polygons

• Understanding parallel lines

• Solving for unknown angles using equations

• Introduction to trigonometry

If the sum of three angles is 134 degrees, and two of them are 14 and 90 degrees, what is the third angle?

• 30 degrees

• 50 degrees

• 60 degrees

• 40 degrees

What is the value of y if it forms a straight line with an angle of 134 degrees?

• 46 degrees

• 56 degrees

• 66 degrees

• 76 degrees

How many degrees are in a circle?

• 270 degrees

• 180 degrees

• 360 degrees

• 450 degrees

If three angles form a circle and two of them are 90 and 123 degrees, what is the third angle?

• 177 degrees

• 167 degrees

• 157 degrees

• 147 degrees

What is the sum of angles around a point?

• 360 degrees

• 180 degrees

• 90 degrees

• 270 degrees

If two angles are 21 and 69 degrees, what is their sum?

• 80 degrees

• 90 degrees

• 100 degrees

• 110 degrees

What is the value of angle a if the sum of angles a, 69, 21, and 143 degrees is 360 degrees?

• 48 degrees

• 58 degrees

• 68 degrees

• 78 degrees

What is the measure of a right angle?

• 60 degrees

• 90 degrees

• 120 degrees

• 45 degrees

If an angle is 21 degrees, what is its complementary angle?

• 59 degrees

• 69 degrees

• 79 degrees

• 89 degrees