Cubic closest-packing has a face-centered cubic unit cell. has a simple cubic unit cell. has the same unit cell as hexagonal closest-packing. has a body-centered cubic unit cell.

80 the answer is 80

step-by-step explanation:

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm

many reason,

step-by-step explanation:

∡ eia and ∡ kij are congruent

step-by-step explanation: