100 Questions for Mom: A Journal to Inspire Reflection and Connection

100 Questions for Mom: A Journal to Inspire Reflection and Connection

Matematika 33. Cermati bangun berikut! Berapa luas bangun datar gabungan di samping? 28 ton​

33. Cermati bangun berikut! Berapa luas bangun datar gabungan di samping? 28 ton​

Jawaban:

1.lingkaran /sengah lingkaran

rumus=L=π×r² r=diameter dibagi 2, =28÷2=14

L= ½×π×r²

L=½×22per7×14×14

L=½×22×2×14

L=½×616

L=308.

2.persegi rumus L=s×s

L=s×s

L=28×28

L=784.

jadi,L1+L2=308+784=1.092

hasil=1.092

maaf ya kalo salah

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