tinabehnam3 tinabehnam3
  • 03-02-2021
  • Mathematics
contestada

With method please !!!!!!

With method please class=

Respuesta :

ChoiSungHyun
ChoiSungHyun ChoiSungHyun
  • 03-02-2021

Step-by-step 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.)

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