7. Obtuse
8. Acute
9. No, because it’s the hypotenuse
10. Yes, because that part is not the hypotenuse and it is less than the greatest angle
U=(x+2)
u^2+5u-6=0
C is answer
The answer is 1/8, hope this helps you :)
Perimeter= 2 ( length + width)
2×(12+6)
2×18
=36
