1

A triangle has sides $b=12$ cm and $c=15$ cm with an included angle $A=40^\circ$. Work out the length of side $a$. [3]

2

In triangle $ABC$, $A=55^\circ$, $a=10$ cm and $b=8$ cm. Work out the size of the acute angle $B$. [3]

3

A triangle has two sides of length $11$ cm and $9$ cm with an angle of $70^\circ$ between them. Work out its area. [2]

4

A triangle has sides $8$ cm, $6$ cm and $5$ cm. Work out the size of its largest angle. [3]

5

In triangle $ABC$, $B=66^\circ$, $C=48^\circ$ and side $c=AB=9$ cm. Work out the area of triangle $ABC$. [4]