Given:
The figure of a triangle.
To find:
The value of x.
Solution:
According to the triangle proportionality theorem, if a line segment divides the two sides of a triangle and parallel to the third side of the triangle, the it divides the two inclined sides proportionally.
Using triangle proportionality theorem, we get
![(2x)/(80)=(27)/(60)](https://img.qammunity.org/2022/formulas/mathematics/high-school/axjmcna026g4f4hg6sdy51j4zqp84mcany.png)
![(x)/(40)=(9)/(20)](https://img.qammunity.org/2022/formulas/mathematics/high-school/4cyndl6o1flm6480pjz4xno36bklffd224.png)
Multiply both sides by 40.
![x=(9)/(20)* 40](https://img.qammunity.org/2022/formulas/mathematics/high-school/78lum5s4pfhp0ft3v02wafi08kazzknl25.png)
![x=9* 2](https://img.qammunity.org/2022/formulas/mathematics/high-school/4ko6nba9jk2pxpuks7x9bfggiruenw4b3e.png)
![x=18](https://img.qammunity.org/2022/formulas/mathematics/high-school/r4zqjnc2g9srcfyg8rtqmtprbxlgy9cniu.png)
Therefore, the value of x is 18.