**Q1: **

The figure shows two vectors, and , where and . Use the parallelogram method to find the magnitude of the resultant of these two vectors. Give your answer to two decimal places.

**Q2: **

The two vectors, and , are shown in the diagram.

The following parallelogram is drawn based on the two vectors and .

Using the properties of parallelograms, find .

Given that and , use the cosine rule to find the magnitude of . Give your answer to two decimal places.

**Q3: **

Given that , , and , determine , rounded to two decimal places.