The answer is c. corresponding angles are congruent
400 = 2×2×2×2×5×5.
400 = 2^4 × 5^2 .
It depends on the quality of the balls. It also depends on where you are buying them. Do you have any more details?
Answer:
1. makes two right triangles
2. not similar
3. similar, the bottom one is dilated by 3
