Loading...
SSAT Middle Level
Quantitative (Math)

Finding the Length of Side in a Triangle

Hard Geometry And Measurement Triangles And Polygons

In triangle ABC, the length of side AB is 8 cm, side AC is 6 cm, and angle A measures 60 degrees. To find the length of side BC, we can use the Law of Cosines.

The Law of Cosines states that for any triangle with sides $a$, $b$, and $c$, and an angle $C$ opposite side $c$, the formula is given by:

$$c^2 = a^2 + b^2 - 2ab imes ext{cos}(C)$$

In this triangle, let $a = 8$ cm, $b = 6$ cm, and $C = 60^ ext{o}$. What is the length of side BC?

Hint

Submitted11.9K
Correct9.0K
% Correct76%