Given the radus of my apple juice how good does it taste

What is the square root of 45? (step by step working plz)

Does the point (1, sqrt 7) lie on circle shown.

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.