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by BlastRoom
Matching each line of a worked solution to the property that permits it.
#geometry
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A proof gives m of angle C = m of angle D, and m of angle D = 55 degrees. The next line is m of angle C = 55 degrees. Which property justifies the step?
A proof gives m of angle E = m of angle F, and m of angle F = 40 degrees. The next line is m of angle E = 40 degrees. Which property justifies the step?
A proof has the line x divided by 6 equals 9. The next line is x = 54. Which property justifies the step?
A proof has the line 5x = 60. The next line is x = 12. Which property justifies the step?
A proof gives x = 25.6 and the equation 2x + m of angle D = 118. The next line is 2(25.6) + m of angle D = 118. Which property justifies the step?
A proof has the line x + 4 = 31. The next line is x = 27. Which property justifies the step?
A proof has reached 3x = 39. The next step is x = 13. What reason justifies that step?
A proof has the line m of angle E = 55 degrees. The next line is 55 degrees = m of angle E. Which property justifies the step?
A proof has the line x + 13 = 31. The next line is x = 18. Which property justifies the step?
A proof has the line x - 11 = 31. The next line is x = 42. Which property justifies the step?
A proof states that triangle ABC is congruent to triangle DEF and triangle DEF is congruent to triangle GHJ, and concludes that triangle ABC is congruent to triangle GHJ. Which property justifies the conclusion?
A proof has the line 3x = 36. The next line is x = 12. Which property justifies the step?
A proof has the line x + 6 = 22. The next line is x = 16. Which property justifies the step?
A proof has the line 5x = 45. The next line is x = 9. Which property justifies the step?
A proof writes m of angle D = m of angle D. Which property justifies this statement?
A proof has reached 4x = 36. The next step is x = 9. What reason justifies that step?
A proof has the line x - 9 = 15. The next line is x = 24. Which property justifies the step?
A proof states that angle B is congruent to angle B. Which property justifies this statement?
A proof has reached 4x - 8 = 24. The next step is 4x = 32. What reason justifies that step?
A proof gives that angle A is congruent to angle B. The next line is m of angle A = m of angle B. Which reason justifies the step?
A proof has the line x + 6 = 15. The next line is x = 9. Which property justifies the step?
A proof has the line 6x = 72. The next line is x = 12. Which property justifies the step?
A proof has the line x divided by 5 equals 7. The next line is x = 35. Which property justifies the step?
A proof has the line x - 7 = 15. The next line is x = 22. Which property justifies the step?
A proof states that if triangle ABC is congruent to triangle DEF, then triangle DEF is congruent to triangle ABC. Which property justifies this statement?
A proof begins with 4(x - 2) = 24. Step 1 is 4x - 8 = 24. What reason justifies Step 1?
A proof begins with 6(x - 7) = 30. Step 1 is 6x - 42 = 30. What reason justifies Step 1?
A proof has reached 6x - 12 = 18. The next step is 6x = 30. What reason justifies that step?
A proof states that segment BC is congruent to segment CD and segment CD is congruent to segment DB, and concludes that segment BC is congruent to segment DB. Which property justifies the conclusion?
A proof states that if segment BC is congruent to segment CD, then segment CD is congruent to segment BC. Which property justifies this statement?
A proof has the line m of angle 1 = m of angle 3. The next line is m of angle 1 + m of angle 2 = m of angle 3 + m of angle 2. Which property justifies the step?
A proof has the line m of angle 1 + m of angle 2 = m of angle 2 + m of angle 3. The next line is m of angle 1 = m of angle 3. Which property justifies the step?
A proof has reached 3x - 21 = 18. The next step is 3x = 39. What reason justifies that step?
A proof has the line x - 4 = 31. The next line is x = 35. Which property justifies the step?
A proof begins with 5(x - 7) = 30. Step 1 is 5x - 35 = 30. What reason justifies Step 1?
A proof states that angle 1 is congruent to angle 2 and angle 2 is congruent to angle 3, and concludes that angle 1 is congruent to angle 3. Which property justifies the conclusion?
A proof has the line 6x = 42. The next line is x = 7. Which property justifies the step?
A proof has the line x divided by 4 equals 9. The next line is x = 36. Which property justifies the step?
A proof gives x = 10 and the equation 2x + m of angle F = 40. The next line is 2(10) + m of angle F = 40. Which property justifies the step?
A proof gives m of angle G = m of angle H, and m of angle H = 72 degrees. The next line is m of angle G = 72 degrees. Which property justifies the step?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
What Justifies This Step?
24 questions
