Elena is making circular birthday invitations for her friends. The radius of the circle is 7.5 cm. She purchased 500 cm of ribbon to glue around the edge of each invitation. Would she have enough ribbon to make 10 invitations? If so, how much ribbon would be left over? If not, how much more ribbon would she need? Round answers to the nearest hundredth.

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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

the answer is -1 for this question

step-by-step explanation:

i would need to see the shape

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