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π¨= π π π·π P = perimeter a = apothem (P = ns) (use right β) a
For any shape with all equal sidesβ¦ π¨= π π π·π a P = perimeter (P = ns) a = apothem (use right β)
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π¨= π π π·π π¨= π π ___ ___ π¨=_______ a 60 8.26 x x a _____ ___ = ___ tan
H 36o 12 12 π¨= π π π·π A a 360Γ· 10 = 36o 6 π¨= π π ___ ___ O 12 60 8.26 x x 12 a _____ ___ = ___ tan 36o 6 a 60Γ· 5= a tan 36o = 6 12 π¨=_______ 247.8 cm2 tan 36 a = 6/ tan 36o
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π¨= π π π·π π¨= π π ___ ___ π¨=_____ 374.1 units2 a 72 x x a 12 =__ π 6 12
π¨= π π π·π 30o 12 a =__ π 6 12 360Γ· 12 = 30o 6 π¨= π π ___ ___ 72 6 π x x a 12 12 12 x π¨=_____ 374.1 units2 6= 12
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π¨= π π π·π π¨= π π ___ ___ π¨= _____ a a 42 4.04 x x 84.8 m2 14 n 7 n π
360Γ· 6 = 60o 60 a 14 n 7 a n π n π = 14 7 3 3 π¨= π π π·π 14 x 3= π¨= π π ___ ___ 42 4.04 x x π¨= _____ 84.8 m2
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π¨= π π π·π π¨= π π π·π π¨= π π ___ ___ π¨= π π ___ ___ π¨= _____ π¨= _____ a
360Γ· 12 = 30o 14 360Γ· 6 = 60o 14 14 60 a 30o 14 n a =π π 7 14 14 a n π 7 7 7 n π = 14 7 14 x 6= 3 3 π¨= π π π·π 14 x 3= π¨= π π π·π π¨= π π ___ ___ π¨= π π ___ ___ 42 4.04 84 π π x x x x π¨= _____ 84.8 π¨= _____ m2 509.2 units2
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8 8 8 4 8 π¨= π π ___ ___ __ π x x π¨= π π ππ π¨= _____ 27.7 units2 24 Γ·
30 30 8 24 Γ· 3= π§ π 60o 60o π 8 π¨= π π ___ ___ __ π 4 8 π¨= π π ππ x x π¨= _____ 27.7 units2
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8 8 8 4 8 32 ππ π π¨= π π ___ ___ __ π π¨= π π ππ x π¨= _____ 512 x π¨= ππ
H 8 30 30 8 24 Γ· 3= 32 π― π π ππ π π§ π 60o 60o π 8 π― π π π¨= π π ___ ___ 4 8 __ π π¨= π π ππ x π¨= _____ 512 x π¨= ππ π¨= _____ 27.7 units2 π¨= ____ ____ ππ π ππ π units2 x
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12 12 42 ππ π 12 π¨= π π ππ π¨= π π ___ ___ 12 __ π 6 x x π¨= ππ π¨= _____
H 36 Γ· 12 30 30 3= 12 42 π― π π ππ π π§ π 60o 60o π 12 π― π π π¨= π π ππ π¨= π π ___ ___ 12 __ π 6 x x π¨= ππ π¨= _____ 882 π¨= _____ 62.4 units2 π¨= ____ ____ ππ π ππ π units2 x
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