Homework SourseC CDs ahanen toc cele n and ci rele B Solutionzxy is a direc
C. CD\'s ahanen, toc; cele n and ci rele B ![C. CD\'s ahanen, toc; cele n and ci rele B Solutionzxy is a direct common tangent whose lenght = SQRT[d2 - (r1 - r2)2], where d = 7 (distance between the cente](/WebImages/4/c-cds-ahanen-toc-cele-n-and-ci-rele-b-solutionzxy-is-a-direc-980039-1761503021-0.webp "C. CD\'s ahanen, toc; cele n and ci rele B Solutionzxy is a direct common tangent whose lenght = SQRT[d2 - (r1 - r2)2], where d = 7 (distance between the cente")
Solution
zxy is a direct common tangent whose lenght = SQRT[d2 - (r1 - r2)2], where d = 7 (distance between the centers), r1 = 3 and r2 = 2.
Substituting we get zxy = SQRT[ 72 - (3 - 2)2]
= SQRT (49 - 1)
= SQRT(48)
= 6.93
