Open Up - Grade 8 - Mathematics - Unit 2 - Lesson 1
By Formative Library
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Last updated over 2 years ago
8 Questions
1
1.
Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A.
Select all of the measurement pairs that could be the dimensions of Rectangle B.
7.G.1
1
2.
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
Is Rectangle A a scaled copy of Rectangle B?
7.G.1
1
3.
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
Is Rectangle B a scaled copy of Rectangle A?
7.G.1
1
4.
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
Explain how you know that Rectangle C is not a scaled copy of Rectangle B.
7.G.1
1
5.
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
Is Rectangle A a scaled copy of Rectangle C?
7.G.1
1
6.
Here are three polygons.
Draw a scaled copy of Polygon A with scale factor \frac{1}{2} .
Draw a scaled copy of Polygon A with scale factor 2.
Draw a scaled copy of Polygon A with scale factor \frac{1}{4}.
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7.
Which of these sets of angle measures could be the three angles in a triangle?
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1
8.
In the picture lines AB and CD are parallel. Find the measures of the following angles.
(Only one measurement per angle)
- 160 degrees
- 45 degrees
- 34 degrees
- 142 degrees
- 38 degrees
- 145 degrees
- Angle BCD
- Angle ECF
- Angle DCF
7.G.1
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