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15 votes
15 votes
Can help me solve this problem for topic application of trigonometry

Can help me solve this problem for topic application of trigonometry-example-1
User Twhb
by
3.0k points

1 Answer

16 votes
16 votes

The sides are given of the triangle.

Apply the heron's formula, to find the area of triangle.


A=\sqrt[]{s(s-a)(s-b)(s-c)}
s=(21.6+16.4+12.8)/(2)=25.4
A=\sqrt[]{25.4*3.8*9*12.9}=\sqrt[]{11205.972}=105.85sq\mathrm{}cm

The area of triangle obtained is 105.85 sq.cm.

User Eppye
by
2.9k points
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