Answer:6
Step-by-step explanation:solve the equation, you know that it equals 90 because the angle is 90
so 16x-6=90
+6 both sides
16x=96
divided by 16 both sides to isolate x
x=6
Answer is (A) because it is concave and it has 8 sides
Answer:
1 3/8
Step-by-step explanation:
Step by step explanation is below. See attachment :)
Answer:
Step-by-step explanation: