Question

plisss jawabin besok dicocokin
no ngasal!!​

Answer 1

Keliling bangun datar

[tex]( \frac{1}{2} \times \pi \times d) + (2 \times p + l) \\ \\ (\frac{1}{2} \times 3,14 \times 20) + (2 \times (22 - 10) + 20) \\ \\ 31,4 + 44 \\ \\ 75,4 \: cm \: (B)[/tex]

Answer 2

K1 : 1/2πd

= 1/2(3,14(20)

= 1/2(62,8)

= 1(62,8/2)

= 31,4 CM

K2 :

= 2P + 2L

= 2(22 - 10 + 20)

= 2(12 + 20)

= 2(22)

= 44 CM

K.GABUNGAN :

= (31,4 + 44)CM

= 75,4 CM