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Calculate the area of the regular pentagon below:
A regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches.

Calculate the area of the regular pentagon below A regular pentagon with side length of 118 inches and dotted line from center to middle of side of 81 inches class=

Respuesta :

Answer: 238.95 in²

because this is a regular pentagon

=> the area of the regular pentagon will be 5 times the area of the triangle in the picture.

we have: the area of the triangle is: (11,8.8,1)/2 = 47,79 (in²)

=> the area of the regular pentagon is 5. 47,79 = 238,95 (in²)

Step-by-step explanation:

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