41.
A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park had been used as a lawn. If the area of the lawn is 2109 m2 then the width of the road is

42.
Through each vertex of a triangle, a line parallel to the opposite side is drawn. The ratio of the perimeter of the new triangle, thus formed, with that of the original triangle is

43.
ABCD is kite where ∠A is 90° and ∠C is 60°. If length of AB is 6 cm, what is the length of diagonal AC?

44.
One of the four angles of a rhombus is 60°. If the length of each side of the rhombus is 8 cm, then the length of the longer diagonal is

45.
If the sum of the diagonals of a rhombus is L and the perimeter is 4P, find the area of the rhombus?

46.
A parallelogram has sides 15 cm and 7 cm long. The length of one of the diagonals is 20 cm. The area of the parallelogram is

47.
In the given figure, ABCDEF is a regular hexagon whose side is 12 cm. What is the shaded area (in cm2)?
Mensuration 2D mcq question image

48.
Two circles with centre A and B and radius 2 units touch each other externally at 'C'. A third circle with centre 'C' and radius '2' units meets other two at D and E. Then the area of the quadrilateral ABED is

49.
The area of a rectangle is thrice that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is $$\frac{3}{2}$$ times that of the side of the square. The side of the square, (in cm) is

50.
If the area of a circle is A, radius of the circle is r and circumference of it is C, then which one of the true?