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With method please !!!!!!
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With method please !!!!!!

With method please !!!!!!-example-1
User Stanislav Kniazev
by
4.8k points

1 Answer

9 votes

Explanation:

Angle ACB = 180° - 72° - 59° = 49°.

(Sum of angles in a triangle = 180°)

Now by Sine Rule,

Area of Triangle

= 0.5(CA)(CB)sin(Angle ACB)

= 0.5(7cm)(12cm)sin49°

= 31.7cm². (1d.p.)

User SteveMcQwark
by
5.5k points
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