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Mathematics 12 Online
OpenStudy (mrsbieberxxmine):

Find the area of the regular pentagon with radius 17mm.

OpenStudy (mrsbieberxxmine):

Please help

OpenStudy (mrsbieberxxmine):

Ill give a medal

OpenStudy (welshfella):

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OpenStudy (welshfella):

split it into five congruent triangles each triangle has 2 sides = 17 mm the angles ate the center are each 360/5 = 72 degrees use trigomometry to find the area of each triangle then multiply by 5.

OpenStudy (welshfella):

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OpenStudy (mrsbieberxxmine):

I don't get it

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