math9878
23.07.2019 •
Mathematics
What is the area of a regular pentagon with a side length of 9 millimeters and an apothem length of 6.2 millimeters? a. 55.8 millimeters squared b. 279.0 millimeters squared c. 27.9 millimeters squared d. 139.5 millimeters squared
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Ответ:
Area of the pentagon = 5 ( 1/2 x 6.2 x 9) = 139.5 mm²
129.5 mm² (Answer D)
Ответ:
i think its 0.6. jdnsllq