Sophiapaz1
Sophiapaz1 Sophiapaz1
  • 03-07-2019
  • Mathematics
contestada

Find the area of the triangle

Find the area of the triangle class=

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smmwaite
smmwaite smmwaite
  • 03-07-2019

Answer:

=14.69km²

Step-by-step explanation:

We can use the Hero's formula to calculate the area

A= √(s(s-a)(s-b)(s-c))

s is obtained by adding the lengths of the three sides of the triangle and then dividing by 2, a, b and c are the ides of the triangle.

S=(5+6+7)/2

=9

A=√(9(9-6)(9-5)(9-7))

=√(9×3×4×2)

=√216

=14.69km²

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