Berapakah luas permukaan kerucut yang r= 14 cm, garis pelukis nya 20 dan \pi= ?.... Question from @kadekayu1234

September 2018 2 20 Report

Berapakah luas permukaan kerucut yang r= 14 cm, garis pelukis nya 20 dan \pi= $\frac{22}{7}$ ?

shofiyanuraini L = L.selimut + L.alas
L= π.r² + π.r.s
L = .14² + .14.20
= 22.2.14 + 22.2.20
= 616 + 880
1496 cm²

1 votes Thanks 2

Wozaws Lp kerecut
= phi x r (r+s)
= 22/7 x 14 (14+20)
=44x34
=1496

0 votes Thanks 1

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