Find the value of a.
http://curriculum.kcdistancelearning.com…
Find the value of a.
http://curriculum.kcdistancelearning.com…
http://curriculum.kcdistancelearning.com…
Find the value of a.
http://curriculum.kcdistancelearning.com…
-
first one using cosine law
a^2 = b^2 + c^2 - 2bc cosA = 25 + 64 - 2*5*8 cos 48 = 89 - 80 cos48 = 35.5
a ~= 5.96
similarly the second one
a^2 = 16 + 49 - 2*4*7*cos52
a^2 = b^2 + c^2 - 2bc cosA = 25 + 64 - 2*5*8 cos 48 = 89 - 80 cos48 = 35.5
a ~= 5.96
similarly the second one
a^2 = 16 + 49 - 2*4*7*cos52