The formula for a regular polygon, which this one is, is A = 1/2 ap where a is the apothem and p is the perimeter. 20.8 * 7 = 145.6 which is the perimeter, so now just multiply by 21.6 and .5. 145.6 * 21.6 * .5 = 1572.48, or B above.
35.5 ft is the width of the room
Answer:
9.99
Step-by-step explanation:
Answer:
4 right angles & 2 sets of parallel lines
Step-by-step explanation:
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