casguilera
casguilera casguilera
  • 13-04-2019
  • Mathematics
contestada

Find the area of a triangle when A=40, b=14, c=9
a. 18.5
b. 40.5
c. 27.9
d.26.3

Respuesta :

calculista
calculista calculista
  • 22-04-2019

Answer:

Option b. 40.5 units²

Step-by-step explanation:

we know that

Applying the law of sines

The area of a triangle is equal to

A=(1/2)(b)(c)sin(A)

The angle A is the included angle between side b and side c

substitute the values

A=(1/2)(14)(9)sin(40°)=40.5 units²

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