Loading...
Digital SAT
Digital SAT Mathematics - Calculator Section

Triangle Side Calculation Using Law of Cosines

Easy Additional Math Topics Geometry

In a triangle, the lengths of two sides are 7 cm and 24 cm. The angle between these two sides is an obtuse angle. Calculate the length of the third side of the triangle.

To find the length of the third side, apply the Law of Cosines, which is given by the formula:

$$c^2 = a^2 + b^2 - 2ab \cdot \cos(C)$$

where a and b are the lengths of the sides surrounding angle C, and c is the length of the side opposite angle C.

Answer Preview:

Hint

Submitted12.7K
Correct11.9K
% Correct94%