This can be easily figured out. Check to see what points are on the bottom and that is your answer.
B
You can put it in a TI84 calculator and find the answer.
Perimeter = 2 × π × r
Perimeter = 2 × 3.14 × 9
Perimeter = 56.52
Perimeter = 56.52 ÷ 2
Perimeter = 28.26
The perimeter of a semicircle with a radius of 9mm is 28.26
Answer:
a=6x and b=5
Step-by-step explanation:
Answer:
Correct option: ninth one.
m∠CQD = 22°
m∠EQF = 33°
Step-by-step explanation:
as the segment BQG is a straight line, its angle is 180 degrees, so the sum of all those 5 angles is equal to 180 degrees. So, we have that:
m∠FQG + m∠EQF + m∠DQE + m∠CQD + m∠BQC = 180°
12 + 3x + 103 + 2x + 10 = 180
5x + 125 = 180
5x = 55
x = 11°
Then, we have that:
m∠CQD = 2x = 22°
m∠EQF = 3x = 33°
