1. If roots of x² - 7x + k = 0 are equal, then k = ?
2. Solve: x² - 9 = 0
3. In similar triangles, ratio of areas is equal to:
4. Angle in semicircle is:
5. sin²θ + cos²θ = ?
6. tan θ = sin θ / ?
7. Volume of cylinder = ?
8. Probability of getting 6 on dice:
9. Antonym of “increase”:
10. “Land of Rising Sun” refers to: