Understanding Midsegments in Triangles

This video tutorial explains how to use the properties of midsegments in triangles to determine unknown values. It provides two examples: the first focuses on solving for the variable y, and the second on solving for x. The tutorial highlights the relationship between midsegments and the sides of triangles, emphasizing that a midsegment is half the length of its parallel side. Through step-by-step calculations, the video demonstrates how to apply these properties to solve equations and find unknown values.

What is a midsegment in a triangle?

• A line that bisects an angle of a triangle.

• A line that divides a triangle into two equal areas.

• A line that is perpendicular to one side of a triangle.

• A line that connects the midpoints of two sides of a triangle.

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CCSS.HSG.SRT.B.4

If a side of a triangle is 28 units long, what is the length of each segment when divided by a midsegment?

• 7 units

• 21 units

• 28 units

• 14 units

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CCSS.7.EE.B.4A

How do you solve for y if 2y - 9 equals 14?

• y = 13

• y = 11.5

• y = 12

• y = 10

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CCSS.HSG.SRT.B.4

What is the length of a midsegment if the parallel side of the triangle is 34 units?

• 17 units

• 68 units

• 34 units

• 8.5 units

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CCSS.7.EE.B.4A

How do you solve for x if 5x + 4 equals 17?

• x = 3

• x = 2.8

• x = 2.4

• x = 2.6

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CCSS.HSG.SRT.B.4

In a triangle with two midsegments, if one side is 38 units, what is the length of the midsegment?

• 38 units

• 19 units

• 76 units

• 9.5 units

If a midsegment is 21 units long, what is the length of the parallel side of the triangle?

• 21 units

• 42 units

• 10.5 units

• 63 units

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CCSS.7.EE.B.4A

How do you solve for x if 2x - 9 equals 42?

• x = 23.5

• x = 24

• x = 26

• x = 25.5

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CCSS.2.OA.C.3

What is the remainder when 51 is divided by 2?

• 1

• 0

• 2

• 3

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CCSS.4.NF.C.6

What is the decimal equivalent of 25 and a half?

• 25.05

• 25.05

• 25.5

• 25.55

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CCSS.4.NF.C.6