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Trigonometry and the Area of Regular Polygons – Practice 01

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1. Find the area of each figure. Round your answer to the nearest tenth.

An equilateral triangle 4 yd on each side.

6.9 $yd^2$

4 $yd^2$

13.9 $yd^2$

24 $yd^2$

Question 1 of 6

2. Find the area of each figure. Round your answer to the nearest tenth.

A regular octagon measuring 6 km on each side.

188.1 $km^2$

173.8 $km^2$

77.9 $km^2$

347.6 $km^2$

Question 2 of 6

3. Find the area of each figure. Round your answer to the nearest tenth.

An equilateral triangle 8 yd on each side.

27.7 $yd^2$

55.4 $yd^2$

38.1 $yd^2$

96 $yd^2$

Question 3 of 6

4. Find the area of each figure. Round your answer to the nearest tenth.

A regular octagon 3 yd on each side.

43.5 $yd^2$

47 $yd^2$

19.5 $yd^2$

86.9 $yd^2$

Question 4 of 6

5. Find the area of each figure. Round your answer to the nearest tenth.

A regular octagon with a perimeter of 64 cm.

138.5 $cm^2$

309 $cm^2$

334.5 $cm^2$

618 $cm^2$

Question 5 of 6

6. Find the area of each figure. Round your answer to the nearest tenth.

A regular pentagon with a perimeter of 30 ft.

55.6 $ft^2$

61.9 $ft^2$

76.6 $ft^2$

123.9 $ft^2$

Question 6 of 6

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