There are four basic operations: addition, subtraction, multiplication, and division. do you think these four operations can be performed on polynomials?
what would it look like to perform these operations on polynomials? which operation do you think would be the simplest? which do you think will be difficult?

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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