Open Up - Grade 8 - Mathematics - Unit 1 - Lesson 16

By Formative Library
Last updated about 3 years ago
5 Questions

For each triangle, find the measure of the missing angle.

Figure 2
24 degrees
Figure 3
20 degrees
Figure 4
88 degrees
Figure 1
35 degrees

Is there a triangle with two right angles?

In this diagram, lines AB and CD are parallel.
Angle ABC measures 35o and angle BAC measures 115o.(One answer per angle)

  • 60
  • 115
  • 25
  • 105
  • 120
  • 35
  • 30
  • Angle ACE
  • Angle DCB
  • Angle ACB

The two figuresĀ are congruent.
Label the points A1, B1 and C1 that correspond to A, B, and C in the figure on the right.

If segment AB measures 2 cm, how long is segment A1B1 (Label the segment in the show your work section.)

The two figuresĀ are congruent.
The point D is shown in addition to A and C. How can you find the point D1 that corresponds to D?

"Source: Open Up Resouces (Download for free at openupresources.org.)"