Question

Tolong di jawab mengunakan caranya. nanti di jadikan sebagai ter-brainly.

Answer 1

Hai kak !
Salam kenal
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4)

a)
Step I
Luas persegi
= s × s
= 24 dm × 24 dm
= 576 dm^2

Step II
Luas segitiga sama kaki
= 1/2 × a × t
= 1/2 × 24 dm × 20 dm
= 12 dm × 20 dm
= 240 dm^2

Step III
Luas segitiga siku-siku
= 1/2 × a × t
= 1/2 × 12 dm × 24 dm
= 6 dm × 24 dm
= 144 dm^2

Step IV
Luas bangun gabungan
= L persegi + L segitiga sama kaki + L segitiga siku-siku
= 576 dm^2 + 240 dm^2 + 144 dm^2
= 960 dm^2 ==> JAWABAN

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b)
Step I
Luas persegi
= s × s
= 28 dm × 28 dm
= 784 dm^2

Step II
Luas 1/2 lingkaran
= 1/2 × Phi r^2
= 1/2 × 22/7 × 14^2
= 1/2 × 22/7 × 14 × 14
= 1/2 × 616
= 308 dm^2

Step III
Luas segitiga siku-siku
= 1/2 × a × t
= 1/2 × 24 dm × 28 dm
= 12 dm × 28 dm
= 336 dm^2

Step IV
Luas bangun gabungan
= Luas persegi + L 1/2 lingkaran + L segitiga siku-siku
= 784 dm^2 + 308 dm^2 + 336 dm^2
= 1.428 dm^2 ==> JAWABAN

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5)

a)
Step I
Volume kubus
= s^3
= 25^3
= 25 cm × 25 cm × 25 cm
= 15.625 cm^3

Step II
Volume tabung
= L alas × t
= Phi r^2 × t
= 22/7 × 14^2 × 15
= 22/7 × 14 × 14 × 15
= 616 × 15
= 9.240 cm^3

Step III
Volume gabungan
= V kubus + V tabung
= 15.625 cm^3 + 9.240 cm^3
= 24.865 cm^3 ==> JAWABAN

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b)
Step I
Volume tabung
= L alas × t
= Phi r^2 × t
= 22/7 × 7^2 × 20
= 22/7 × 7 × 7 × 20
= 154 × 20
= 3.080 dm^3

Step II
Volume prisma
= Luas alas × t
= (1/2 × a × t) × t prisma
= (1/2 × 5 × 5) × 12
= (1/2 × 25) × 12
= 12,5 × 12
= 150 dm^3

Step III
Volume gabungan
= V tabung + V prisma
= 3.080 dm^3 + 150 dm^3
= 3.230 dm^3 ==> JAWABAN

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Mapel : Matematika
Katagori : Luas dan Volume
Kata Kunci : Luas dan Volume gabungan
Kelas : VI SD
Kode mapel : 2

Kode katagorisasi : 6.2.4 [Matematika Kelas 6 Bab 4 - Luas dan Volume]

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Semoga membantu
Semangat belajarnya kak !