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 .

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

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?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

In the picture lines AB and CD are parallel. Find the measures of the following angles. Explain your reasoning.

= ?

= ?

= ?