The answer is a vertex. Corners of any shape are vertexes
There is 4 cups in 1 quart.
She is incorrect cause if we take the number 20 and take 25% of it it equals 5 so now 20 is only 15. They if we take 75% away from 20 is equals 15 so then we only have 5 from 20 left. Therefore she’s incorrect because 75% leaves 5/20 and 25% leaves 15/20. Hope that makes sense.
It's A ...cos (90- theta) = sin theta
so A
