Which formula will calculate out the area of the half circle? Select one:
a. 3.14 x 1.7 x 1.7 ÷ 2
b. 3.14 x 3.4 x 3.4 ÷ 2
c. 3.14 x 3.4 x 7.2
d. 3.14 x 3.4 x 3.4

the answer is A

Step-by-step explanation:

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)