Answer:
thats hard
Step-by-step explanation:
that big big hard
x=90
y=78
z=70
Now
or,90+78+70
or,238 answer.
C
10 units
6^+8^=X^
36+64=x^
100=x^
10=x
B
540 is the sum of all angles in a pentagon
The ANGLE STP is 180-50 = 130
540 - 130 is 410