Omar measures one machine part with length 4,392 centimeters and another part with length
6.82 centimeters, What is the difference in length? Use estimation to check your answer for
reasonableness,

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

50.6

step-by-step explanation:

it would open into a square depending on the type of envelope i’m not sure about the second part

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