1) What is the sum of angles in a triangle? a) 90 degrees b) 180 degrees c) 360 degrees d) 270 degrees 2) In a right-angled triangle, which side is opposite the right angle? a) Hypotenuse b) Adjacent side c) Opposite side d) Base 3) What is the sine of 30°? a) 0.5 b) 1 c) 0.866 d) 0.707 4) Which trigonometric ratio is adjacent over hypotenuse? a) Cotangent b) Sine c) Tangent d) Cosine 5) If sin θ = 0.6, what is cos θ? a) 0.6 b) 0.8 c) 0.4 d) 1.2 6) What is the tangent of 45°? a) 0 b) 1 c) √2 d) 2 7) In a right triangle, if the hypotenuse is 10 units and the side opposite 30°, what is the length of that side? a) 3 units b) 8units c) 5 units d) 10 units 8) What is the formula use to calculate any one side of a right-angled triangle? a) Trigonometry Ratio b) Solution of Triangle c) Polygon Formula d) Phytagoras Theorem 9) What is the cosine of 60°? a) 0.5 b) 1 c) 0.866 d) 0.707 10) In a right triangle, if the side opposite 60° is 6 units, what is the hypotenuse? a) 12 units b) 10 units c) 8 units d) 6 units

Right-Angled Triangles & Trigonometry Quiz

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