Calculate the curved surface area of a cone with a diameter of 42 cm, and a height that is 1 cm shorter than half its diameter.
Let, the radius, height and slant height of the cone be 'r' cm, 'h' cm, and 'l' cm. r = (42/2) = 21 cm h = 21 - 1 = 20 cm So, l2 = 212 + 202 = 441 + 400 Or, l2 = 841 Since, the slant height cannot be negative. So, l = 29 So, the curved surface area of the cone = π X r X l = (22/7) X 21 X 29 = 1,914 cm2
Select the figure that will replace the question mark (?) in the following figure series.
Six students, L, M, N, O, P and Q, are standing facing north, but not necessarily in the same sequence. L is at one of the corners and Q is beside him. ...
Select correct combination of mathematical signs to sequentially replace the letter Y and balance the following equation.
52 Y 13 Y 16 Y 32 Y 2
Select the option figure, which placed in the blank space of the figure marked ‘X’, would complete the pattern.
Which of the following interchange of signs would make the given equation correct?
42 ÷ 7 − 64 + 11 × 6 = 4
In a certain code language, 'ROMAN' is written as 'YVTHU'. How will 'THING' be written in that language?
Which two signs should be interchanged to make the given equation correct?
13 × 6 + 24 ÷ 6 – 17 = 91
Which two numbers should be interchanged to make the given equation correct?
14 + 32 − 56 ÷ 28 × 5 = 40
The following question is based on the given diagram.
Select the option in which the figure given below is embedded. (Rotation of the shape is not allowed)
