A circular piece of glass has a radius of 1.2 meters. The glass sells for $7.10 per square meter. What is the total cost of the circular piece of glass?

31.95 dollars

Step-by-step explanation:

area of the piece of glass=22/7×1.2×1.2

=4.5

1 square metres~7.10

4.5 square meters ~7.10×4.5

=31.95

step-by-step explanation:

it's is b

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .