Answer:16
Step-by-step explanation: 4*4=16
Answer:
a = 22
Step-by-step explanation:
The law of cosines can be written 3 different ways for a triangle, each way with a different angle. Here, the given angle is angle A, so we write the law of cosines with angle A.
Let numbers be x and y
ATQ
Adding both
Now putting value in eq(2)