Luas gabungan
L=Luas persegi + Luas setengah lingkaran
L=s²+¼πd²
L=21×21+¼×22/7×21×21
L=441+¼×22×3×21
L=441+¼×1.386
L=441+346,5
L=787,5cm²
Semoga bermanfaat
LPP :
= (21(21)CM²
= 442 CM²
LP 1/4L :
= 1/4(22/7(21/2)²
= 1/4(22/7(10,5)²
= 1/4(22/7(110,25)
= 1/4(22(110,25/7)
= 1/4(22(15,75)
= 1/4(346,5)
= 346,5/4
= 86,625 CM²
LP.GAB :
= (442 + 86,625)CM²
= 528,625 CM²
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Jawaban:
Luas gabungan
L=Luas persegi + Luas setengah lingkaran
L=s²+¼πd²
L=21×21+¼×22/7×21×21
L=441+¼×22×3×21
L=441+¼×1.386
L=441+346,5
L=787,5cm²
Semoga bermanfaat
LPP :
= (21(21)CM²
= 442 CM²
LP 1/4L :
= 1/4(22/7(21/2)²
= 1/4(22/7(10,5)²
= 1/4(22/7(110,25)
= 1/4(22(110,25/7)
= 1/4(22(15,75)
= 1/4(346,5)
= 346,5/4
= 86,625 CM²
LP.GAB :
= (442 + 86,625)CM²
= 528,625 CM²