Math, asked by hbk3, 1 year ago

ABCD is a rhombus whose diagonal ac makes an angle a with ab.if cos a=2/3 and ob=3cm,find the length of its diagonal ac and bd

Answers

Answered by asanraja

2

Cos alpha = 2/3
Sin alpha = 1 - 2/3
= 1/3
Thus tan alpha = 1/2
Thus
1/2 = BO / AO
1/2 = 3/AO
AO = 6 Cm
Thus AC= 12 Cm
and BD = 6 Cm

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