class 10th surface area and volume

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Across
  1. 5. A triangle with one 90° angle is called ____ triangle
  2. 7. sin θ = Perpendicular / Hypotenuse is called ____ ratio
  3. 8. Two angles whose sum is 90° are called ____ angles
  4. 9. Reciprocal of sine ratio (1/sin θ)
  5. 10. sin θ, cos θ, tan θ are trigonometric ____
  6. 14. Reciprocal of tangent ratio (1/tan θ)
  7. 15. Reciprocal of cosine ratio (1/cos θ)
Down
  1. 1. The longest side in a right-angled triangle
  2. 2. tan θ = Perpendicular / Base is called ____ ratio
  3. 3. The side across from the right angle is ____
  4. 4. The unit for measuring angles
  5. 6. Greek letter used to represent angles
  6. 7. sin θ is abbreviated from this word
  7. 11. The side next to the given angle (not hypotenuse)
  8. 12. sin²θ + cos²θ = 1 is called trigonometric ____
  9. 13. cos θ = Base / Hypotenuse is called ____ ratio