Question is:
Fill in the blanks to solve
.
Answer:

Step-by-step explanation:
Given

Required
Solve
Multiply both sides by x


Make x the subject


Answer:
1386 square units
Step-by-step explanation:
Area of a cirlce = Pi x r^2 [ Pi is 22/7 as stated in question]
22/7 x 21^2 = 1386 sq. units
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orlando 是不对的。ABBY 是对的应为2是power