Which triangle’s area can be calculated using the trigonometric area formula?

The triangle’s area can be calculated using the trigonometric area formula is 1/2 ab sin theta

A triangle is a three-sided figure containing three angles.

Assuming we are given two sides of a triangle 'a" and "b" with angle between the two sides to be theta

The area of the triangle will be expressed as A = 1/2 ab sin theta

The triangle’s area can be calculated using the trigonometric area formula is 1/2 absin theta

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x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18