September 2018 1 29 Report
Tolong dbntu yaa, sklian dgn rumusnya yg lengkap.

1.Luas selimut kerucut yang keliling alasnya 75,36 cm,tinggi 16 cm,dan pendekatan \pi 3,14 adalah..
a.602,88 cm² c. 1.205.76 cm²
b. 753,6 cm² d. 9.034,2 cm²

2.Luas permukaan tabung yang panjang jari-jari alasnya 9 cm,tinggi 22 cm,dan \pi 3,14 adalah...
a. 876,06 cm² c. 1.497,78 cm²
b. 1.130,4 cm² d. 1.752,12 cm²


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