potatoismeh1
29.04.2021 •
Mathematics
Four small spheres each with radius 6 are cach interually tangent to a large sphere with radius 17. The
four small spheres form a ring with each of the four spheres externally tangent to its two neighboring small
spheres. A sixth intermediately sized sphere is intemally tangent to the large sphere and externally tangent
to each of the four small spheres. Its radius is , where m and n are relatively prime positive integers.
Find mn + n.
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Ответ:
B
Step-by-step explanation:
given sin D =
= 
then EF = 24
then cos E =
= 
= 
→ B