Discovering Geometry

Which pair of angles are alternate exterior angles?

• Angle 7 and Angle 4

• Angle 2 and Angle 6

• Angle 8 and Angle 1

• Angle 2 and Angle 8

Tags

CCSS.8.G.A.5

Given the following tile pattern, how many tiles would be in the 5th shape?

• b = 8

• b = 11

• b = 7

• b = 9

Tags

CCSS.4.OA.C.5

If angle P measures 60 degrees, what is the measure of angle C?

• 60 degrees

• 30 degrees

• 120 degrees

• 180 degrees

Tags

CCSS.8.G.A.5

What is the value of x?

• 22

• 26

• 24

• 23

Tags

CCSS.8.G.A.5

Which statement is a valid conclusion based on the argument?
If a polygon is a regular pentagon, then the polygon has exactly five congruent angles.
The polygon is a regular pentagon.

• Therefore, the polygon is a rectangle.

• Therefore, the polygon is a regular quadrilateral.

• Therefore, the polygon has exactly five congruent angles.

• Therefore, the polygon has congruent sides.

Tags

CCSS.8.G.A.2

Why is this conclusion valid?

• Angle Addition Postulate

• Complementary angles

• Supplementary angles

• Vertical Angles Theorem

Tags

CCSS.8.G.A.5

Given: ∠1 and ∠2 are complementary.

Conclusion: m∠1 + m∠2 = 90°

• Angle Addition Postulate

• Definition of supplementary angles

• Addition Property of Equality

• Definition of complementary angles

Tags

CCSS.7.G.B.5

Given: the diagram Conclusion: m∠1 + m∠2 = m∠AXC

• Angle Addition Postulate

• Definition of supplementary angles

• Addition Property of Equality

• Definition of complementary angles

Tags

CCSS.7.G.B.5

Find the value of angle a

• 70°

• 55°

• 25°

• 40°

Tags

CCSS.8.G.A.5

Find the value of angle c

• 70°

• 55°

• 25°

• 10°

Tags

CCSS.8.G.A.5