Answered

Find the best solutions to your problems with the help of IDNLearn.com. Join our Q&A platform to access reliable and detailed answers from experts in various fields.

The diameter of a sphere is multiplied by 1/5. What is the effect on the surface area?



Answer choices:

5 times bigger
5 times smaller
25 times bigger
25 times smaller
15 times bigger
15 times smaller
125 times bigger
125 times smaller
Answer is not here

Sagot :

Mhanifaidn

Answer:

  • 25 times smaller

Step-by-step explanation:

Scale factor is:

  • k = 1/5

Ratio of surface areas is:

  • k² = (1/5)² = 1/25

Surface area will be 25 times smaller

Correct choice is D

MisterBrainlyidn

We know the ratio of sides to area

  • a/b=a²/b²

So

If diameter is multiplied by 1/5

Surface are increases

  • (1/5)²
  • 1/25

25 times smaller

We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. IDNLearn.com is committed to your satisfaction. Thank you for visiting, and see you next time for more helpful answers.