Finding Missing Side Lengths in Triangles

This video tutorial explains how to use the area of a triangle to find a missing side length, specifically the height. It begins with an introduction to the problem, followed by setting up the known values and explaining the area formula. The tutorial then demonstrates solving the equation to find the missing height and concludes with verifying the solution by checking the calculated area.

What is the area of the triangle discussed in the video?

• 100 square units

• 50 square units

• 75 square units

• 25 square units

What is the base length of the triangle used in the example?

• 15 units

• 5 units

• 10 units

• 20 units

Tags

CCSS.6.G.A.1

According to the area formula, what must be true about the base and height of the triangle?

• They must be of the same unit

• They must be perpendicular

• They must be equal

• They must be parallel

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

How is the height represented in the equation set up in the video?

• As variable y

• As variable x

• As variable b

• As variable h

Tags

CCSS.6.EE.B.7

What operation is performed to simplify the equation 1/2 * 10 * x = 50?

• Subtraction of 10

• Addition of 10

• Division by 2

• Multiplication by 2

Tags

CCSS.4.MD.A.2

What is the simplified form of the expression 1/2 * 10 used in the equation?

• 2

• 5

• 10

• 20

Tags

CCSS.6.G.A.1

What must be true about the sides used in the area formula of a triangle?

• They must be parallel

• They must be perpendicular

• They must be the shortest sides

• They must be the longest sides

Tags

CCSS.6.G.A.1

What is the calculated height of the triangle?

• 5 units

• 10 units

• 15 units

• 20 units

Tags

CCSS.6.G.A.1

How do we verify the calculated height is correct?

• By measuring the triangle

• By using a different formula

• By checking triangle symmetry

• By recalculating the area

Tags

CCSS.6.G.A.1

What is the result of recalculating the area with the found height?

• 100 square units

• 75 square units

• 50 square units

• 25 square units

Tags

CCSS.6.G.A.1