Well, split it into 3 shapes
21 x 10 = 210
3 x 6 = 18
2 x 6 = 12
210 + 18 + 12 = 240 square cm
imahe for more context
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Answer:
A and C the other two are just stand alone numbers. so the answers are A and C
we know that
total of sum of arc is 360
so, sum of both arc must be 360
so, we get

now, we can solve for x

............Answer
Answer: I thin it's A because you just multiply 19*6
Step-by-step explanation: