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Verified answer
Ltrapesium besar = (a+b)/2 × t=(32+10)/2 × 16
=21 × 16
= 336 cm2
Ltrapesium kecil rumus sama
=(10+7)/2 x 8
=(17)/2 × 8
=17 × 4
= 68 cm2
L diarsir = 336-68=268cm2
Verified answer
Bangun DatarDiketahui:
CD = 10 cm
AB = 32 cm
DG = 8+8 cm = 16 cm
EF = 7 cm
DE = 8 cm
Ditanya:
L arsiran = ?
L trapesium besar = 1/2 (CD + AB) DG
= 1/2 (10+32) 16
= 42 x 8
= 336 cm^2
L trapesium kecil = 1/2 (EF + CD) DE
= 1/2 (7+10) 8
= 17 x 4
= 68 cm^2
L arsiran = L trapesium besar - L trapesium kecil
= 336-68
= 268 cm^2 (D)
*semoga membantu. sukses selalu ^_^