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a) 45cm2
b) S
c)         60cm2
d)         90cm2

##### Area of a triangle of sides a,b and c and semi-perimeter s is

a) S(s-a)(s-b)(s-c)
b)         (1/2)s(s-a)(s-b)(s-c)
c) √s(s-a)(s-b)(s-c)
d) 1/2√s(s-a)(s-b)(s-c)

a) 50√3
b) 75√3
c) 200√3
d) 100√3

##### An isosceles triangle has a non-equal side of 12 cm and one of the equal sides is 8 cm, then the area of this triangle is

a) b) c) d) a) 16cm2
b)         21cm2
c)         30cm2
d)         45cm2

##### The base of an isosceles right triangle is 20 cm. Its area is

a) 450cm2
b)         250cm2
c)         200cm2
d) 250√3cm2

a) 60cm2
b)         25cm2
c)         45cm2
d)         30cm2

##### In Heron`s formula semi perimeter s is equal to ?

a) (a+b+c)/3
b)      (a+b+c)/2
c)      (a+b+c)/4
d)      (a+b+c)

a)     20
b)     21
c)    17
d)     23

a)     9 cm
b)     6 cm
c)    3 cm
d)     6 3

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