circumference of circle = 2×3.14×50
circumference = 100×3.14
circumference = 314m
option c is correct answer friend
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Answer:
7.07
Step-by-step explanation:
Angle M is 63 degrees because all 3 angles must add to 180.
Now use the law of sines:
sin(90)/x = sin(63)/6.3
Cross multiply: 6.3 sin (90) = x sin (63)
Divide by sides by sin (63): (6.3 sin (90))/sin (63) = x
Use a calculator: 7.07
Answer:
a = -10
Step-by-step explanation:
89 + 10a + 2 = a + 1
91 + 10a = a + 1
9a = - 90
a = -10
