Question

Find area of triangle when 13cm ,14cm ,15cm

Answer 1

Answer:

AREA OF TRIANGLE ===>

I SOLVE THIS QUESTION BY HERON'S FORMULA

==> S = A+B+C/2 ==> S = 13+14+15/2 ==> 42/2 ==> 21

HERO'S FORMULA ==> √S+√(S-A) + √(S-B) + √(S-C)

    ==> √21 × √21-13 × √21-14 × √21-15

  ==> √21 × √8 × √7 ×√6

==> √7×3×2×2×2×7×2×3

==> 2×2×3×7

==> 84 CM²

I HOPE ITS HELPFUL