Henryharris Henryharris

11-05-2020
Mathematics

contestada

Uma fábrica confecciona sacos de confeitar de papel-manteiga para decoração de bolos no formato de um cone circular reto sem tampa cujas medidas estão indicadas no desenho abaixo. 20 cm e 16 cm

De acordo com essas medidas e usando pi=3,14, quantos cm2 de papel-manteiga serão necessários para fabricar 25 sacos de confeitar?

Respuesta :

guguriedel guguriedel

17-05-2020

Answer:

12.560 cm^2

Step-by-step explanation:

Raio = 8

Geratriz = 20

A Lateral = 3,14 x 8 x 20 = 502,4

502,4 vale para um saco, logo para 25 serai: 25 x 502,4 = 12.560

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