18. •Luas 3/4lingkaran = 3/4πr^2
=3/4.22/7.14^2
=3/4.22.28
=462 cm^2
•Luas segitiga =a×t/2
=14×14/2
=196/2
=98 cm^2
•Luas total= 462+98=560 cm^2
Jawabannya D
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18. •Luas 3/4lingkaran = 3/4πr^2
=3/4.22/7.14^2
=3/4.22.28
=462 cm^2
•Luas segitiga =a×t/2
=14×14/2
=196/2
=98 cm^2
•Luas total= 462+98=560 cm^2
Jawabannya D