Question

Find the area of a triangle if two sides are of 5 units, 8 units and the angle between them is ${30}^{\circ }$.

• A. 10
• B. 20
• C. 30
• D. 50

Answer 1

The correct option is A 10

We know that the area of a triangle = $\frac{1}{2}$ a.b.sin C
In this C is the angle opposite to the side of length "c" or made in between sides a & b.
Area =$\frac{1}{2}\mathrm{5.8.}sin{30}^{\circ }$
Area = 10 units.