tolongin dong pake cara trimss hehe

◎ L layang-layang ( tdk diarsir )
L1 = ( 1/2 * d1 *d2 ) - L arsiran
= ( 1/2 *10*24 ) - 63
= 120 - 63
= 57 cm²
◎ L trapesium ( tdk diarsir )
L2 = ( 1/2 * (a+b) * t trapesium ) - 63
= ( 1/2 * (16+26) * 12 ) - 63
= 252 - 63
= 189 cm²
◎ L total = L1 + L2
= 57 + 189 = 246 cm² [ A ]
★ ΝOTE → t trapesium =
t ² = 13² - 5²
t = 12 cm
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