find the area of a triangle with perimeter 22 cm one side 9 cm and difference of two other side is 7 cm.
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One side is 10cm long,another is 3cm long
Step-by-step explanation:
X+y+z =22
If x=9cm
y+z =13..
y-z =7
2y=20
y=10
There for z=3cm
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