Operations with radical expression
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<u>Given</u>:
Given that the triangle with ∠B = 45°
The length of the side a is 4 units.
The length of the side c is 8 units.
We need to determine the area of the triangle.
<u>Area of the triangle:</u>
The area of the triangle can be determined using the formula,
Substituting a = 4, c = 8 and ∠B = 45° in the above formula, we have;
Simplifying, we get;
Thus, the area of the triangle is 11.31 square units.