Finding Missing Values in Congruent Triangles

The video tutorial covers the concept of congruent polygons, focusing on corresponding angles and sides. It demonstrates solving for variables x and y using these properties. The teacher explains that corresponding angles in congruent polygons are equal, allowing for algebraic solutions. The tutorial also touches on naming conventions for sides and concludes with a brief, unrelated discussion on color.

Which polygons are being discussed in the problem setup?

• EFGH and WXYZ

• EFGH and PQRS

• ABCD and WXYZ

• ABCD and PQRS

Tags

CCSS.2.G.A.1

What is the relationship between corresponding angles in congruent polygons?

• They are equal in measure

• They are complementary

• They are supplementary

• They are unrelated

Tags

CCSS.8.G.A.2

If angle A is 2x + 4 and angle P is 100, what is the value of x?

• 52

• 54

• 50

• 48

Tags

CCSS.7.G.B.5

What is the measure of angle P if angle A is given as 2x + 4 and x is found to be 48?

• 100

• 104

• 92

• 96

Tags

CCSS.7.G.B.5

Which side of polygon ABCD corresponds to side RS of polygon PQRS?

• CD

• AB

• AD

• BC

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which of the following is true about corresponding sides in congruent polygons?

• They are perpendicular

• They are equal in length

• They are unrelated

• They are parallel

Tags

CCSS.8.G.A.2

If 3y - 3 equals 12, what is the value of y?

• 5

• 4

• 6

• 7

Tags

CCSS.7.EE.B.4A

What must be true about the order of naming corresponding sides in congruent polygons?

• They must be named alphabetically

• They must be named in reverse order

• They can be named in any order

• They must be named in the same order

Tags

CCSS.8.G.A.2

If side CD is 3y - 3 and y is found to be 5, what is the length of side CD?

• 15

• 12

• 9

• 10

Tags

CCSS.8.G.B.8

What is the final value of y when solving the equation 3y - 3 = 12?

• 5

• 7

• 4

• 6

Tags

CCSS.7.EE.B.4A