Y=(2-x) (1+3x)
This is vertical. and that should be 4x=1
X = original angle
3x = (90-x) - 14
3x = -x + 76
4x= 76
x = 19
The measure of the angle is 19 degrees
The last graph is the correct answer.
Answer:
7.5 cm²
Step-by-step explanation:
Dimensions of the large ∆:


Dimensions of the small ∆:


Difference between the area of the large and the small ∆ = 13.5 - 6 = 7.5 cm²