Nomer 3 kagak bise eh

Diagonal sisi
= s√2
= 14√2

diagonal ruang
= s√3
= 14√3

diagonal sisi
=√(14² + 14²
= √196 + 196
= √(196 x 2)
=14√2

diagnal ruang
√(14² + 14² + 14²)
√196 + 196 + 196
√196 x 3
14√3