1. Which triangle has all three sides equal in length?   Equilateral   Isosceles   Scalene   Hint Half-n-half Clue   2. Which triangle has an angle equal to 90°?   Acute   Right   Obtuse   Half-n-half Clue   3. Which triangle has an angle greater than 90°?   Acute   Right   Obtuse   Half-n-half Clue   4. What type of triangle is Δ XYZ, where ∠X = 55°, ∠Y = 68° and ∠Z = 57°?   Equilateral   Isosceles   Scalene   Half-n-half Clue   5. What type of triangle is Δ ABC, where ∠A = 137°, ∠B = 15° and ∠C = 28°?   Acute   Right   Obtuse   Half-n-half Clue   6. What type of triangle has all angles measuring 60°?   Equilateral   Isosceles   Scalene   Half-n-half Clue   7. A triangle has angle measurements of 28°, 39°, and 113°. What type of triangle is this?   Acute   Right   Obtuse   Half-n-half Clue