devonzbest
devonzbest devonzbest
  • 14-08-2020
  • Mathematics
contestada

Find the area of triangle ABC. A. 14.45 units² B. 18.51 units² C. 13.76 units² D. 14.39 units²

Find the area of triangle ABC A 1445 units B 1851 units C 1376 units D 1439 units class=

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akposevictor
akposevictor akposevictor
  • 19-08-2020

Answer:

C. [tex] 13.76 units^2 [/tex]

Step-by-step explanation:

Given:

∆ABC,

m<A = 66.28°

m<B = 31.09°

AB = 7.6

BC = 7.01

Required:

Area of ∆ABC

SOLUTION:

Area = ½*AB*BC*sin(B)

[tex] Area = \frac{1}{2}*7.6*7.01*sin(31.09) [/tex]

[tex] Area = \frac{1}{2}*7.6*7.01*sin(31.09) [/tex]

[tex] Area = 13.76 units^2 [/tex]

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