What's the answer to this problem? 2y + 12< 42

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

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

How are sas and sss used to show that two triangles are congruent?