no 1
t = √5²-3² = √16 = 4 cm
Ltrapesium
= 1/2 ( a + b ) t
= 1/2 ( 14 + 8 ) (4)
= 2(22)
= 44 cm^2
Kell
= 14 + 8 + 5 + 5
= 32 cm
no 2
AD = AB = √12²+5² = 13
BC = DC = √12²+16² = 20
Llayanglayang
= 1/2 ( 5 + 16 ) ( 12 + 12 )
= 12(21)
= 252 cm^2
= 13 + 13 + 20 + 20
= 66 cm
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no 1
t = √5²-3² = √16 = 4 cm
Ltrapesium
= 1/2 ( a + b ) t
= 1/2 ( 14 + 8 ) (4)
= 2(22)
= 44 cm^2
Kell
= 14 + 8 + 5 + 5
= 32 cm
no 2
AD = AB = √12²+5² = 13
BC = DC = √12²+16² = 20
Llayanglayang
= 1/2 ( 5 + 16 ) ( 12 + 12 )
= 12(21)
= 252 cm^2
Kell
= 13 + 13 + 20 + 20
= 66 cm