John has a sink that is shaped like a half sphere. The sink has a volume of 1072 inches to 3rd power . One day his sink clogged. He has, to use one of two cylindrical cups to scoop the water out his sink. The sink is full when Anthony begins scooping. A) one cup has a diameter of 2in and height of 4in. How many cups of water must Anthony scoop out of the sink with this cup to empty it ? Round to nearest whole number

The length of what is left would be 1 1/2 feet long.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle