Tugas mat besok kumpul yang bener yaa

Tugas mat besok kumpul yang bener yaa

Jawaban:

A. Lp = La + Lst

$tt = 10 times 10 + 4 times frac{10 times 4}{2}$

= 100 + 80

= 180 cm²

B. Lp = La + Lst

$tt = 30 times 16 + cancel{2} ( frac{16 times 15}{cancel{2}} ) + ^{cancel{2}} ( frac{30 times 8}{cancel{2}} )$

= 480 + 240 + 240

= 960 cm²

C. Lp = La + Lst

$tt = 12 times 12 + 4( frac{12 times 8}{2} )$

= 144 + 192

= 336 cm²

D. Lp = La + Lst

$tt = 14 times 14 + 4( frac{14 times 24}{2} )$

= 196 + 672

= 868 cm²

E. Lp = La + Lst

$tt = 6 times 6 + 4( frac{6 times 4}{2} )$

= 36 + 48

= 84 cm²

F. Lp = La + Lst

$tt = 12 times 12 + 4( frac{12 times 10}{2} )$

= 144 + 240

= 384 cm²