Question

find the area of a triangle with two sides equal each being 5.1 M and the third side 4.6 metres​

Answer 1

area of triangle=√s(s-a)(s-b)(s-c)

s=5.1+5.1+4.6/2

=14.8/2

=7.4

area=√7.4(7.4-5.1)(7.4-5.1)(7.4-4.6)

=√7.4×2.3×2.3×2.8

=2.3√7.4×2.8

=2.3√20. 72

=2.3×2√2×2.59

=4.6√5.18m^2

area of the triangle is 4.6√5.18m^2.

hope it helps you.

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Answer 2

we know that when three sides of a triangle are given we use the heroines formula to find the area of a triangle

so here a=5.1

b=5.2

c=4.6

and s=7.4

so. area=under root s(s-a) (s-b)(s-c)

thus Ans is under root 109.6