Estimate whether each sum is closest to 0, 1/2, 1, or 1 1/2.

The sum is closest to 1/2.

Step-by-step explanation:

To simplify it if you make the 1/11 into a 1/10 then it equals 2/10=1/5. 1/5 if way closer to 1/2 than anything else.

first one because it can't have a fraction in it

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh