100 MORE Days of Weight Loss: Giving You the Power to Be Successful on Any Diet Plan

100 MORE Days of Weight Loss: Giving You the Power to Be Successful on Any Diet Plan

Matematika
※ Hitunglah luas permukaan dan volume gabungan bangun ruang di atas!

[tex]\boxed{\purple{by : ♡Syahlalala21♡}}[/tex]


※ Hitunglah luas permukaan dan volume gabungan bangun ruang di atas!

[tex]\boxed{\purple{by : ♡Syahlalala21♡}}[/tex]

Jawaban:

V=7.848

LP = 2.964

sorry klo salahhh

Penjelasan dengan langkah-langkah:

V balok = P x L x T

= 12 x 36 x 18

=7.776 cm³

V Limas = 1/3 x luas alas x tinggi

= 1/3 x 18 x 12

= 6 x 12 = 72

V gabungan = 7.776 + 72

= 7.848

LP balok = 2 x ((36 x 18) + (36 x 12) + (18 x 12)

= 2 x (648 + 432 + 216)

= 2 x 1.296

= 2.592

LP limas = (18 x 18) + ( 4 x 12)

=324 + 48

=372

LP gabungan= 2.592 + 372= 2.964

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