We have a number 45 in which there is a, uh, water tank in conical shape. Okay, who's high days? Height of the corn is 11 ft and radius is 5 ft. We have to find the volume of the water in the tank. When the water is 6 ft deep, what is 6 ft deep? So from this distance here to hear becomes 6 ft. So the height off the water will be 11 minus six. That is 5 ft. Volume off water will be fire Squire at by three by r squared at by three or one bad repair of courage. So till now, we have a sequel. Toe. Okay, 5 ft. We need to find the radius here. Okay. Now, to get this radius, let us say R one or R. We have to just use the the fundamental off similar triangles in Django, this bigger triangle and this smaller triangle. So these two tangles will be similar triangles, as this angle is common in both, Uh uh, This anger is common in both the triangles that is strangled o a b and what we say. Oh, a b and all. Mm. And so in jungle or a B and all m n angle a girl. Okay, a b a b o is Congress to ankle M B n and one more. One more angle will be the congruent as thes two are parallel and this will be the corresponding angle. So angle o a b oh, a b will be congruent to angle and m be so Triangle o A b will be similar toe triangle o m and by angle angle criteria. Now, if this is similar so the sides will be proportion size side will be in proportion. So we should, right? Oh, a by an m Oh, a by Okay. Oh Mm. MBN. I have written a long triangle, I think. Here. Oh, a B and an m b N m b. Okay. Jangle n m b yes, decisively in proportion. So a by N m Oh, a by an EMP will be equal toe obe by and be okay, I will be by and be okay, so or we have five. That given radius is five enemies are equal toe obi is 11 ft and B is five. Okay, so are will be equal toe 25 by 11 ft now for live will become one by three by our square, That is 25 11 whole Squire toe edge, that is five. Oh, Gay. So this will be won by three. And to buy in to 625 5 121 into five. Now we have to use the calculator for this. So this will be a 27 point zero for five. The volume of water will approximately be 27 point zero file. There are five cubic feet. Okay, so this is an answer. Thank you.