1. What type of triangle is Δ ABC, where AB = 53 km, AC = 53 km and BC = 29 km?  (Note: km denotes kilometer.)    Equilateral   Isosceles   Scalene   Hint Half-n-half Clue   2. A triangle has two angles measuring 45° and one angle measuring 90°. What type of triangle is this?   Equilateral   Isosceles   Scalene   Half-n-half Clue   3. Which triangle has all three angles less than 90°?   Acute   Right   Obtuse   Half-n-half Clue   4. What type of triangle is Δ ABC, where ∠A = 130°, ∠B = 14° and ∠C = 36°?   Acute   Right   Obtuse   Half-n-half Clue   5. In a right triangle, what is the side opposite to the right angle called?   Hypotenuse   Altitude   Leg   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 22°, 35°, and 123°. What type of triangle is this?   Acute   Right   Obtuse   Half-n-half Clue