Question

Use the results of to find the area of each triangle. Round answers to two decimal places.

A = 40^o,      B = 20^o,         a = 2

Answer 1

Step 1:

The angles of triangle are .

One side of the triangle is .

The third angle is .

.

Step 2:

Use sines rule property : .

Consider .

Substitute in above rule,

Step 3:

The area of the triangle with two sides and an angle is .

Solution:

The area of the triangle