If the side length of a regular pentagon is a and length of its diagonal is b; then prove that
((a squared)/(b squared)) + ((b squared)/(a squared) ) = 3
Kaushik Ram , 13 Years ago
Grade 10
1 Answers
Jitender Singh
Last Activity: 10 Years ago
Ans:Hello student, please find answer to your question Length of side = a Length of diagonal = b Angle b/w sides = 720 Apply cosine rule
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