Answer:
52,5°
Step-by-step explanation:
0,5 × (135 - 30)
= 0,5 × (105)
= 52,5°
I’m pretty sure it would be 4, since y= (x) which would be the numbers on the chart and then add 2
ex: y= (2) + 2
y= 4 and so on
Step-by-step explanation:





The area of the semi-circle is 189.97
the answer is C, because you solve 2.815-749, and after you divide the result per 4, so it is 1/4