7.4 Parallel Lines and Proportional Parts
Flashcard
•
Mathematics
•
9th Grade
•
Hard
+1
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is a midsegment in a triangle?
Back
A midsegment is a line segment that connects the midpoints of two sides of a triangle. It is parallel to the third side and its length is half the length of that side.
2.
FLASHCARD QUESTION
Front
If QR is a midsegment of triangle BCD, how do you find the length of QR?
Back
To find the length of QR, measure the length of the side of triangle BCD that is parallel to QR and divide it by 2.
Tags
CCSS.HSG.SRT.B.4
3.
FLASHCARD QUESTION
Front
What is the relationship between parallel lines and proportional parts?
Back
When a transversal intersects two parallel lines, it creates proportional segments on the transversal.
Tags
CCSS.HSG.CO.C.11
4.
FLASHCARD QUESTION
Front
How do you determine if two lines are parallel?
Back
Two lines are parallel if they are in the same plane and do not intersect, or if corresponding angles formed by a transversal are equal.
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
What is the scale factor in a scale drawing?
Back
The scale factor is the ratio of a length in the drawing to the corresponding length in the actual object.
Tags
CCSS.7.G.A.1
6.
FLASHCARD QUESTION
Front
If a scale drawing uses a scale of 4 cm:9 ft, what does this mean?
Back
This means that every 4 cm in the drawing represents 9 ft in the actual object.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
How do you convert a length from a scale drawing to actual length?
Back
Multiply the length in the drawing by the ratio of the actual length to the drawing length.
Tags
CCSS.7.G.A.1
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