5.
The adjacent sides of a parallelogram are 15cm&17cm If it's one diagot is 22cm ;find the area of te parallelogram. (Given √2=1.414)
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7
Answer:
Consider AB=51cm, BC=37cm and AC=20cm.
In ΔABC,
s=2a+b+c
=251+37+20
=54
The area of ΔABC is,
A=s(s−a)(s−b)(s−c)
=54(54−51)(54−37)(54−20)
=54(3)(17)(34)
=93636
=306cm2
The area of parallelogram is the twice of ΔABC,
A=2×306
A=612cm2

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Answered by
6
Answer:
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nice dp...
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