Una pista esta formada por dos arcos consecutivos correspondientes a angulos centrales de 36°y 55°con radios iguales a 20 km. y 15 km, como se muestra en la figura. Determinar la longitud de la pista.

answer: the area of the parallelogram below is 42 square meters.

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the correct answer is 5 6 and 7

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