Skip to main content

MA.912.G.8.4 Conjectures

 

texas_instruments_ti_30xs_multiview.jpg

Two-Dimensional

Three-Dimensional

Trig & Discrete Math

In Your Text

Throughout the Text
Section 1-4; 36-44
Section 2-6; 134-141
Explore 3-3; 185
Section 5-4; 351-358
Section 7-7; 512-517
Extend 12-4; 830-837

SchoolTubeLogo.jpg

What You Need To Know...

How to make conjectures with justifications about geometric ideas.

  1. The benchmark will be assessed using MC (Multiple Choice) items.
  2. Items may include proofs about congruent/similar triangles and parallel lines.

Example One

For his mathematics assignment, Armando must determine the conditions that will make quadrilateral ABCD, shown below, a parallelogram.

 8-4.jpg

Given that the m∠ DAB = 40°, which of the following statements will guarantee that ABCD is a parallelogram?

  1. m∠ ADC + m∠ DCB + m∠ ABC + 40°  = 360°.  
  2. m∠ DCB  = 40°; m∠ ABC  = 140° 
  3. m∠ ABC + 40° = 180° 
  4. m∠ DCB  = 40° 

CLICK HERE FOR SOLUTION

Additional Examples

coming-soon_gif.jpg

VideoTutorial_banner.JPG
Inductive Reasoning
Please select a video file.
Deductive Reasoning
Please select a video file.
Exploring Proofs
Please select a video file.

Reference Sheet

reference.JPG