Find four consecutive terms in an A. P whose sum is 12 & sum of 3rd & 4rt term is 14.(Assume the four consecutive terms in A. P. are a-d ,a, a+d, a+2d.)​

whose sum is 12 and the sum of 3rd and 4th term is 14. ∴ The four consecutive terms of A.P. are – 3, 1, 5 and 9.

it's so easy

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