Question

plsss dauu coroanaaaa​

Answer 1

Răspuns:

b) Ab= lxl= $l^{2}$=> l = $\sqrt{Ab}$= $\sqrt{64}$= 8 cm   l= 8 cm

a) V= Abxh => h= V: Ab=640 : 64   h= 10 cm

c) At= Al+ 2Ab   Pb= 4l= 4x8= 32 cm

Al= Pbxh = 32x10= 320 cm

At= 320+ 2x64= 320+ 128= 448 $cm^{2}$