tolongin please sebentar siang di kumpulinn, kalau bisa buruan plsss ༎ຶ‿༎ຶ
Jawaban:
1.
[tex] \frac{72}{360} \times 3.14 \times {20}^{2} = 251.2 \: cm ^{2} [/tex]
2.
[tex] \frac{150}{360} \times 3.14 \times {36}^{2} = 1695.6 \: {cm}^{2} [/tex]
3.
[tex] \frac{45}{360} \times \frac{22}{7} \times {28}^{2} = 308 \: cm ^{2} [/tex]
Jᴀᴡᴀʙᴀɴ 1
[tex] = \frac{72}{360} \times 3.14 \times {20}^{2} [/tex]
[tex] = 251.2 \tt \: {cm}^{2} [/tex]
—————————————————————
Jᴀᴡᴀʙᴀɴ 2
[tex] = \frac{150}{360} \times 3.14 \times {36}^{2} [/tex]
[tex] = 1695.6 \tt \: {cm}^{2} [/tex]
—————————————————————
Jᴀᴡᴀʙᴀɴ 3
[tex] = \frac{45}{360} \times \frac{22}{7} \times {28}^{2} [/tex]
[tex] = \tt \: 302 \: {cm}^{2} [/tex]
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