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May 22, 2020 · Height of the solid cylinder = 40 cm . Diameter of the solid cylinder = 18 cm . Height of the conical cavity to be hollowed out = 40 cm ( since cone is of same height as cylinder ) Diameter of the conical cavity = 18 cm . To Find : The total surface area of the solid remaining after the hollowed conical cavity is taken out = ? Solution :
Jan 31, 2021 · the diameter of the cylinder (d) = 14 cm . then, Radius (R) = 14/2 = 7 cm. And height (h) = 10 cm. The volume of the cylinder = πr^h
May 11, 2018 · The height of the image is 8 cm. Explanation: Given that, Height of the object h = 4 cm. Distance of the object u= -12 cm. focal length f = -24 cm. Using mirror's formula . Put the value of f and u into the formula. The image is formed behind the mirror. The formula of magnification. The height of the image is 8 cm. The image is virtual and erect.
★New average height will be 168 cm★ Step-by-step explanation: Given: Average height of 6 friends is 167 cm; Height of the boy who left the group is 162 cm. To find: New average height. Solution: → Total height of 6 friends will be = 6 x 167 cm = 1002 cm. Now, A/q (A boy has left the group) →Total height of 5 friends will be = 1002–162 ...
Jan 11, 2023 · For example, you could use a set square to draw the perpendicular lines, instead of using a ruler. The key is to keep the parallel sides at a distance of 2 cm apart and the distance between the parallel sides and the vertices of the side DC at 1 cm. #SPJ2
Feb 20, 2018 · The height of the other cone will be 12.8cm. Step-by-step explanation: Given: Height of first cone (H)= 5cm. Volume of second cone= 16 times volume of the first cone. Radius of the second cone (r)= 2 and 1/2 times of radius of the first cone. To find: height of the second cone(h) Solution:
Jun 12, 2020 · An object of 5 cm height is placed at a distance of 15 cm from a concave mirror. The focal length of the mirror is 10 cm . Here , we have to calculate the position ,height and nature of the image formed . Solution - We know that according to the mirror Formulae , ( 1 / u ) + ( 1 / v ) = ( 1 / f ) Where , u is the object distance from the pole .
height of image= -10cm. height of object= +2cm. To Find, Magnification produced by the concave mirror. Solution, The formula used to calculate the magnification produced by the mirror is. magnification, m = height of image/height of object = - 10/ +2 = -5
Jan 16, 2018 · Height of an inverted cone = 12 cm. Radius of an inverted cone = 9 cm. According to question, This inverted cone has contained water to a depth of 4 cm. So, it forms frustum of cone. By similarity of triangles as shown in the figure below: And height of frustum = 12-4=8 cm. The formula for "Curved surface area of frustum ":
Feb 22, 2023 · Let's assume that the height of M is 2x cm, and the height of N is 3x cm (since the ratio of their heights is 2:3). To find the minimum possible height of M, we need to find the smallest possible value of x. From the given information, we know that the height of N is divisible by 171. Therefore, we can write: 3x = 171y. where y is an integer.
