100 Things Canadiens Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

100 Things Canadiens Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

Matematika alas tabung berdiameter 20,tinggi nya 8
Luas alas? luas selimut? luas permukaan
plis bantuinnn

alas tabung berdiameter 20,tinggi nya 8
Luas alas? luas selimut? luas permukaan
plis bantuinnn

Jawaban:

a. Luas alas tabung

= πr²

= 3,14 x 10cm x 10cm

= 314cm²

b. Luas selimut tabung = πdt

= 3,14 x 20cm x 8cm

= 502,4cm²

c. Luas sisi tabung

= 2 Luas alas tabung + Luas

tabung

= 2 × 314cm² + 502,4cm² 628cm² + 502,4cm²

=

= 1.130,4cm²

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