A man claims that his lot is triangular, with one side 450 m long and the adjacent side 200 m long. The angle opposite one side is 28º. Determine the other side length of this lot to the nearest metre.

545 m

Step-by-step explanation:

Set A = 28º, B as the angle between the 450 m and 200 m side, and C as the remaining angle. Then:

AB = 200 m

BC = 450 m

According to the law of sines:

The remaining angle is then:

Applying the law of sines again:

To the nearest meter, the other side is 545 meters long.

b

step-by-step explanation:

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8