Answer :

Answer:

281.15 cm²

Step-by-step explanation:

semi perimeter ( s ) = ( a + b + c ) / 2

=( KL + LM + KM ) / 2

=(32+21+27)/2

= 80/2

=40

Area of triangle =

[tex] \sqrt{s \: (s - a) \: (s - b)(s - c)} [/tex]

[tex] \sqrt{40(40 - 32)(40 - 21)(40 - 27)} [/tex]

[tex] \sqrt{40 \times 8 \times 19 \times 13} [/tex]

[tex] \sqrt{79040} [/tex]

[tex]281.15cm {}^{2} [/tex]

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