the sides of a triangle are 56 cm ,60cm,52 cm long then the area if triangle is A) 1322 cm B) 750 cm C) 250 D )500 cm square
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Answer:
options A) is wrong it would be 1344
Step-by-step explanation:
Let ,
a = 56 cm
b = 60 cm
c = 52 cm
Formula =
√ s (s - a) (s - b) (s - c)
s = a+b+c/2
s = 56+60+52/2
s = 168 /2
s = 84
put the values in formula
= √ 84 ( 84 - 56 ) ( 84 - 60 ) ( 84 - 52)
= √ 84 ( 28 ) ( 24 ) ( 32 )
= √ 84 x 28 x 24 x 32
= √ 18, 06, 336
= 1344 cm
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