Answer:
78.5cm^2
Step-by-step explanation:
Half your diameter to get a radius.
D = 10cm
10 divided by 2 = 5
Pi (3.14)
3.14 x 5^2
3.14 x 25 = 78.5cm^2
So... none of your answers are correct. The correct answer is
21/2.
Answer:
-108
Step-by-step explanation:
-8 - ( -10 )²
= -8 - 100
= -108
Answer:
90degrees
Step-by-step explanation:
B, because you would just assume the line continues forever on both sides.