Question

What is the area of an irregular triangle with a base of 7ft and height of 3ft with a degree of 55

Answer 1

this is the SAS case... if you know two sides of a triangle and the angle between those two sides you can use this formula: A = (1/2)*s1*s2*sinx, where s1 and s2 are the given sides and x is the included angle.

Answer 2

The calculation follows:\[A=\frac{1}{2}*7*3* \text{Sin}[55{}^{\circ}]=8.6011 \]