Answer:
≈39.27 units
Step-by-step explanation:
To find the area of a semi circle, you use the formula for finding the area of a circle, which is , and then you divide that by 2 since it is half of a circle.
In this case, ≈ 78.54
= 39.27
a The scale on a plan is 1 : 2500. I (a) How long is a wall which is 3 cm in length on the plan? (b) What length would be repres
1 answer:
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