Gak ada yg mau jawab
Jawab:
3. 616 cm² 4. 147.840 cm² 5.
Penjelasan dengan langkah-langkah:
3.
L =1/4 x π x r
=1/4 x 22/7 x 28 cm x 28 cm
= 22 cm x 28 cm
= 616 cm²
4.
V = π x r x r x t
= 22/7 x 28 cm x 28 cm x 60 cm
= 147.840 cm³
5.
Luas 1/2 lingkaran
= 1/2 x π x r x r
= 1/2 x 22/7 x 28 cm x 28 cm
= 1232 cm²
Luas segitiga
= a x t :2
= 56 cm x 20 cm : 2
= 560 cm²
Luas gabungan
= 1232 cm² + 560 cm²
= 1792 cm²
6.
= 24,56 – 15,225 + 18,027
= 9,335 + 18,027
= 27,362
7.
= 5/2 x 3/4 x 10 / 5
=15/4
=3 3/4
8.
= 25/10 x 4 x 3/4
= 60/8
= 7 1/2
Jadikan jawaban tercerdas ya
Terima kasih 🙂