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CBSE Class 10 Answered

Please solve this question 
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Asked by vikasg13.hardware | 13 Jul, 2018, 07:36: PM
answered-by-expert Expert Answer
Let the diagonals meet at a point E, EA = a, EB = b, EC = c and ED = d
Applting Pythagoras
a2 + b2 = 202 = 400
b2 + c2 = 702 = 490
c2 + d2 = 902 = 810
Subtracting equation 2 from 3
d2 - b2  = 320
Adding equation 1 and 4
a2 + d2 = 810 - 490 + 400 = 3600 = AD2 
AD = 60
 
Answered by Sneha shidid | 16 Jul, 2018, 06:11: PM

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