1. Which triangle has an angle greater than 90°?   Acute   Right   Obtuse   Hint Half-n-half Clue   2. In a right triangle, what is the side opposite to the right angle called?   Hypotenuse   Altitude   Leg   Half-n-half Clue   3. What type of triangle is Δ PQR, where ∠Q = 90°?   Acute   Right   Obtuse   Half-n-half Clue   4. What type of triangle is Δ ABC, where AB = AC = BC = 15 cm? (Note: cm denotes centimeter.)   Equilateral   Isosceles   Scalene   Half-n-half Clue   5. Which triangle has all three angles less than 90°?   Acute   Right   Obtuse   Half-n-half Clue   6. A triangle has angle measurements of 90°, 24°, and 66°. What type of triangle is this?   Acute   Right   Obtuse   Half-n-half Clue   7. A triangle has angle measurements of 33°, 69°, and 78°. What type of triangle is this?   Acute   Right   Obtuse   Half-n-half Clue