Question

tolong di jawab menggunakan cara dan di jawab dgn benar makasih​

Answer 1

Jawab:

1. 3.080 cm³

2. 164 cm²

3. 3.174 cm²

Penjelasan dengan langkah-langkah:

1. r = 14 cm ÷ 2

 r = 7 cm

V kerucut = 1/3 × 22/7 × 7² cm × 12 cm

V kerucut = 1/3 × 22/7 × 49 cm × 12 cm

V kerucut = 1/3 × 22/7 × 588 cm ( 588 cm : 7 × 22 )

V kerucut = 1/3 × 1.848 cm ( 1.848 cm : 3 × 1 )

V kerucut = 616 cm³

V tabung = 22/7 × 7² × 16 cm

V tabung = 22/7 × 49 cm × 16 cm

V tabung = 22/7 × 784 cm ( 784 cm : 7 × 22 )

V tabung = 2.464 cm³

J = 616 cm³ + 2.464 cm³

J = 3.080 cm³

2. LP = 2 × (( 10 cm × 3 cm ) + ( 10 cm × 4 cm ) + ( 3 cm × 4 cm ))

LP = 2 × ( 30 cm + 40 cm + 12 cm )

LP = 2 × ( 70 cm + 12 cm )

LP = 2 × 82 cm

LP = 164 cm²

3. LP = 6 × 23²cm

LP = 6 × 529 cm

LP = 3.174 cm²