IM 8.2.1 Practice: Projecting and Scaling
Rectangle measures 12 cm by 3 cm. Rectangle is a scaled copy of Rectangle . Select all of the measurement pairs that could be the dimensions of Rectangle .
Rectangle has length 12 and width 8. Rectangle has length 15 and width 10. Rectangle has length 30 and width 15. Is Rectangle a scaled copy of Rectangle ? If so, what is the scale factor?
Is Rectangle a scaled copy of Rectangle ? If so, what is the scale factor?
Explain how you know that Rectangle is not a scaled copy of Rectangle .
Is Rectangle a scaled copy of Rectangle ? If so, what is the scale factor?
Draw a scaled copy of Polygon A with scale factor 1/2.
Draw a scaled copy of Polygon C with scale factor 1/4.
Draw a scaled copy of Polygon B with scale factor 2.
Which of these sets of angle measures could be the three angles in a triangle?
In the picture lines AB and CD are parallel. Find the measures of the following angles. Explain your reasoning.
= ?
= ?
= ?