Question

A triangular prism has a surface area of 486 in.2
. If it were dilated using a scale factor of 13
, what would the new surface area be?(1 point)
Responses

162 in.2

162 in. squared

54 in.2

54 in. squared

18 in.2

18 in. squared

1,458 in.2

1,458 in. squared
Skip to navigation

Answer 1

Scale factor = 1/3, so surface area multiplies by (1/3)^2 = 1/9.

New surface area = 486 × 1/9 = 54 in^2.

Answer: 54 in.².