Answer:
No it is not a right triangle
Step-by-step explanation:
Because
8 x 2=16. 15 x 2=30
16+30=46
19 x 2=38
38 is not equal to 46 so it is not a right angle
51.6666666667
For #7 - part a: greatest common factor (GCF) is 5.
Part b: cross out everything BUT 10 & 20.
-4.375
