Answers

2016-01-07T17:59:30+05:30
Solve by using heron's formula
heron's formula= √{s(s-a)(s-b)(s-c)}
where, s= {a+b+c}/2
s= {2+12+11}/2
=25/2=12.5m
 area= √{12.5(10.5)(0.5)(1.5)}
=9.921 m^2
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2016-01-08T11:45:04+05:30
If the triangle is right angled 
then
h = 11 
b = 2
area = 1/2xbxh
1/2x2x11
11sq cm
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