Question

Determine the approximate value of e.

6.8 cm


7.3 cm


7.8 cm


8.9 cm

Answer 1

D) 8.9

Explanation:

e^2=b^2+t^2-2btcos(e)

e^2=5^2+6^2-2x5x6xcos(108)

e^2=79.54

square root of 79.54 is 8.9

e=8.9