Answer:
7y8.9 ft²
Step-by-step explanation:
Easy way:
Rotate the triangle so that the 12.1 ft side in on the bottom becomes the base.
Drop a line from the top down perpendicular to the 12.1 ft base. That makes a right triangle.
sin 71 = height/13.8
0.9455 = height/13.8
height = 13.05 ft
Area = bh/2 = (12.1)(13.05)(0.5) = 78.9 ft²
The answer is 12 because the lines of the parrellel shape he’ll come across each other
Parallel lines never intersect purpendicular lines intersect at a single point forming a 90 degree angle
Answer:
(x-1)3
3x-3
Step-by-step explanation:
I came up with this.
