Q1. A trapezium having length of ∥ sides AB = 60 cm, CD = 100 cm & length of non-parallel sides are of length BC = 30 cm, AD = 20 cm. Find the area of the trapezium.
Q2. Volume of a pool which is 20 m long, 5 m breadth & have varying depth of 1 m at one end and 3 m at another end ?
Q3. Two circles with radii 8 cm and 15 cm intersect each other at point M and N. Find the area of rectangle ABCD. If O₁ O₂ = 17 cm
Q4. sin 105° = ?
Q5. Six equal circles of radius ‘r’ are drawn as shown in figure. Find the perimeter of triangle.
(a) (8√3+ 6)r
(b) (12(√3 +1))r
(c) (6√3 +12)r
(d) (2√3 +4)r
Q6. A sphere has been drawn inside the cone of base radius 8 cm and height 6 cm. Find the maximum volume of sphere inside the given cone.
Q7. AB = 20 cm, BC = 10 cm, In rectangle ABCD. A line BE has been drawn such that DE 9DC. Area of ∆BEC will be equal to.
Q8. In given fig. find length of AB.
Q10. x cos³ θ + y sin³ θ = sin θ cos θ & x cos θ = y sin θ then, x² + y² = ?