Math, asked by sumansubhashgarhwal, 20 days ago

area of triangle whose sides are 19 cm and 20 CM 21 CM by horon formula

Answers

Answered by kanishkadps22

0

Answer:

172.3sq.cm

Step-by-step explanation:

In triangle

By Hero's Formula,

s=1/2(19+20+21)cm

s=1/2*60 cm=30cm

Now by Hero's Formula

√s(s-a)(s-b)(s-c)

√30(30-19)(30-20)(30-21)

√(30*11)*90

√330*90

√29700

172.3sq.cm

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