Water is 2 parts hydrogen and 1 part oxygen (H2O). For one molecule of water, each atom
has the atomic mass unit, u,
shown. What percent of
the mass of a water
molecule is hydrogen?
Н
16.00 u
1.01 u
1.01 u

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

show us the triangle so we can answer it