What is the measure of angle B and C (picture included)

If 50% of a number is 14 then 100% of the number is

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8