Question

a geratriz de um cone reto mede
$5 \sqrt{2cm}$
,se h=7cm,calcule = r,ab,al,at e v.​

Answer 1

G^2=h^2+r^2

(5V2)^2=7^2+r^2

25.2 = 49 + r^2

50-49=r^2

r^2=1

r= 1

AB: 3,14.r^2

Ab: 3,14.1^2

Ab: 3,14

Al: 3,14.r.g

Al: 3,14.1.5V2

Al: 15,7V2

At: 3,14.r(g+r)

At: 3,14.1(5V2+1)

At: 3,14. 5V2 + 3,14.1

At: 15,7V2+3,14

At: 18,84V2

V: Ab.h/3

V: 3,14.7/3

V: 21,98/3

V: 7,3