'It's Only Pain': But It's Real and It Hurts

'It's Only Pain': But It's Real and It Hurts

Matematika Diket:R = 3,5cm T = 12cm π. = 22/7 Ditanya:berapa A selimut kerucut (Luas)B Luas permukaan kerucut

Diket:R = 3,5cm T = 12cm π. = 22/7 Ditanya:berapa A selimut kerucut (Luas)B Luas permukaan kerucut

Jawaban:

A) s²= r² x t²

= 3,5² x 12²

= 12,25 x 144

= 1.764

s = √1.764 = 42

Ls kerucut = π x r x s

= 3,14 x 3,5 x 42

= 461,58 cm²

B) Lp kerucut = πr(r + s)

= 3,14 x 3,5 x (3,5 + 42)

= 3,14 x 3,5 x 147

= 1.560,56 cm²

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