20 points ! the shorter base of isosceles trapezoid is 6 cm. the altitude is 10 cm. the acute angle of the trapezoid is 63º. find the longer base.

The answer to your question is:   49.24 cm

Step-by-step explanation:

Data

short base = 6 cm

height = 10 cm

∠ = 63°

Process

tan Ф = opposite side / adjacent side

adjacent side = opposite side / tan Ф

adjacent side = 10 tan 63

adjacent side = 19.62 cm

longer base = 19.62 + 10 + 19.62

longer base = 49.24 cm

answer:

c. the third graph

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.