Year 10 - Basic Angle Rules - Tawa College

What is the rule you would use to calculate the size of angle b?

• Adjacent angles on a straight line add to 180

• Angles on a straight line add to 180

• They add to 180

What rule would you use to calculate the size of angle a?

• Vertically opposite angles are equal

• Adjacent angles on a straight line add to 180

• Angles at a point add to 360

What rule would you use to calculate the size of angle a?

• Angles at a point add to 360

• Adjacent angles on a straight line add to 180

• Vertically opposite angles are equal

What rule would you use to calculate the size of angle A?

• Adjacent angles on a straight line add to 180

• Angles in a triangle add to 180

• Angles at a point add to 360

• Base angles in an isosceles triangles are equal

What rule would you use to calculate the size of angle y?

• Angles in a triangle add to 180

• Base angles in an isosceles triangle are equal

• Adjacent angles on a straight line add to 180

• Angles at a point add to 360

What is the size of x?

• 45

• 40

• 55

• 60

What is the size of angle x?

• 40

• 140

• 220

How many obtuse angles in this shape

• 1

• 2

• 3

• 4

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect