Answer:B
Step-by-step explanation: 0.4 × 0.4 = 0.16 not much more explanation than that really
the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
Answer:
10.2
Step-by-step explanation:
Answer: 0.72
Hope that helps :)
Answer: 2
57
