One side of the rectangular lawn is 12m and its diagonal is 13 m ,then it's area is _______
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Answer:
60 m^2
Step-by-step explanation:
one side of the rectangular lawn is 12m.
thus length if the lawn will be 12m.
diagonal is of 13 m,
according to pythagoras theorem;
a^2 + b^2 = c^2
thus, 12^2 + b^2 = 13^2
b^2 = 169 - 144
b^2 = 25
b = 5
therefore, area of rectangular lawn = l×b
=12 × 5
=60 m^2
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