GreenHerbz206
22.10.2019 •
Mathematics
What is the ratio for the surface areas of the rectangular prisms shown below, given that they are similar and that the ratio of their edge lengths is 7: 3?
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Ответ:
D
Step-by-step explanation:
Given 2 similar figures with sides in the ratio a : b, then
ratio of areas = : a² : b²
Given that the ratio of the edges of the 2 similar prisms is
7 : 3, then
ratio of surface areas = 7² : 3² = 49 : 9 → D
Ответ:
blue
Step-by-step explanation: