Please tolong bantu saya kk skrng dikumpulkan :(
Bagian alas= π ×14×14=22×2×14
=308cm²
Bagian tutup=π×21/2×21/2=11×3×21÷2
=693÷2=346,5cm²
Bagian selimut=π×21×30=22×3×30
=1980cm²
Semuanya=308+346,5+1980=2634,5
2 topi=2634,5×2=5269cm²
Please tolong bantu saya kk skrng dikumpulkan :(
Bagian alas= π ×14×14=22×2×14
=308cm²
Bagian tutup=π×21/2×21/2=11×3×21÷2
=693÷2=346,5cm²
Bagian selimut=π×21×30=22×3×30
=1980cm²
Semuanya=308+346,5+1980=2634,5
2 topi=2634,5×2=5269cm²