Is it Point C, D , B or A? I need help I don’t know this

B

Step-by-step explanation:

Consider perfect squares either side of 45, that is

36 < 45 < 49, thus

< < , that is

6 < < 7

Thus is between 6 and 7

Point B lies between 6 and 7

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: