He diagram shows the universal set U = {parallelograms}. Set A represents parallelograms with four congruent sides, while B represents parallelograms with four congruent angles.

Circles A and B overlap. Circle A contains 12, Circle B contains 6, and the overlap contains 8. Number 3 is outside of the circles.

How many of the parallelograms fall into the category A U B?

6
8
18
26

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

no

explanation:

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the answer on e2020 was d.