Answer:
7/4 +1/6 +X=15/2
1/6+X=15/2-7/4
1/6+X=30/4-7/4
X=23/4 - 1/6
X= 138-4/24
134/24
5.58333
Step-by-step explanation:
6 4/12
1 3/ 12+ 1/12 + 6 2/12 = 7 6/12 or 7 1/2
No
6^2+4^2=52
7^2=49
49 is not equal to 52, so no it is not a right triangle
