A) 10.47sq. m
B) 2.86 sq. m
C) 10.45sq. m
D) None of these
Correct Answer: A
Solution :
In right angled \[\Delta \,ADC,\] \[AD=\sqrt{{{(5.1)}^{2}}-{{(2.3)}^{2}}}\,=4.55\,m\] \[\therefore \] Area of \[\Delta ABC=\frac{1}{3}\times 4.6\times 4.55\] \[=2.3\,\times 4.55\,=10.47\,sq.\,m.\]You need to login to perform this action.
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