In the given figure (not drawn to scale), ΔABC, ΔEFG, ΔKIJ and ΔNMO are 4 different equilateral triangles. Find the perimeter of the figure, if side of square PDHL is 8 cm, AC = 4 cm, EG = 2 cm, KI = 3 cm and MO = 2 cm.
It should be 54
Fill in the blanks and select the CORRECT option.
• Two cylindrical pots contain the same amount of milk. If their diameters are in the ratio 2 : 1, then the ratio of their heights is __P__.
• The volume of a sphere is equal to __Q__ the volume of a cylinder which has same height and diameter. (Radius of sphere = radius of cylinder)
• The slant height and base diameter of conical tomb are 25 m and 14 m respectively. The cost of white washing its curved surface at the rate of ₹ 210 per 100 m2 is __R__
|A||4 : 1||half||₹ 1100|
|B||1 : 4||half||₹ 1100|
|C||1 : 4||two-third||₹ 1155|
|D||4 : 1||two-third||₹ 1155|
Read the statements carefully and select
the correct option.
Statement-I : A rectangular tank is 80 m long and 25 m broad. Water flows into it through a pipe whose cross-section is 25 cm2, at the rate of 16 km per hour. The rise in the level of water in the tank in 45 minutes is 2.5 cm.
Statement-II : If V is the volume of cuboid of dimensions a, b and c and A is its surface area, then = 2[a + b + c].
AStatement-I is true but Statement-II is false.
BStatement-I is false but Statement-II is true.
CBoth Statement-I and Statement-II are true.
DBoth Statement-I and Statement-II are false.