Question

Given: If CR = 2, RA = 3, and BC = 10, find CS.
4
6
6 2/3,
15

Answer 1

The answer is 4 because the ratio of AC (5) and BC (10) is 1:2. Multiply CR by two and CS = 4.

Answer 2

`CS=4\ units`

Explanation:

we know that

Triangles ABC and RSC are similar

then

The ratio of their corresponding sides is equal

`(BC)/(CS)=(AC)/(CR)`

we have

`BC=10\ units`

`AC=RA+CR=3+2=5\ units`

`CR=2\ units`

substitute and solve for CS

`(10)/(CS)=(5)/(2)\\ \\ CS=2*10/5\\ \\CS=4\ units`