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The sides of a triangle are18cm 20cm 22cm Find the area

Posted by Thejas Acharya 1 year, 9 months ago

CBSE > Class 09 > Mathematics

3 answers

Shreya Pandey 1 year, 9 months ago

120root2

0Thank You

Sweet Home 1 year, 9 months ago

a=18cm , b=20cm , c=22cm s= a+b+c/2 s= 18+20+22/2 s=60/2 =30cm Area of triangle= √s(s-a)(s-b)(s-c) =√30(30-18)(30-20)(30-22) =√30(12)(10)(8) =√2×3×5×2×3×2×2×5×2×2×2 =2×3×5×2×2√2 cm² =120√2cm²

2Thank You

Dhruv Gupta 1 year, 9 months ago

240 cm²

0Thank You

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