Question

ai đoá lm giúp mn với. Mình tick cho!

Answer 1

Diện tích xung quanh:

\(2\times\dfrac{2}{3}\times\left(\dfrac{3}{2}+\dfrac{4}{3}\right)=\dfrac{34}{9}\left(m^2\right)\)

=>B

Answer 2

B em nhé

Answer 3

\(Sxq=\left(\dfrac{3}{2}+\dfrac{4}{3}\right)\times2\times\dfrac{2}{3}=\left(\dfrac{9}{6}+\dfrac{8}{6}\right)\times2\times\dfrac{2}{3}=\dfrac{17\times2\times2}{6\times3}=\dfrac{34}{9}\left(m^2\right)\\ B\)