4. A triangular prism is shown below.
8 m
7 m
7 m
12 m
1
What is the lateral surface area of this prism?
![4 A triangular prism is shown below 8 m 7 m 7 m 12 m 1 What is the lateral surface area of this prism class=](https://us-static.z-dn.net/files/d06/fce02fda0f93a6f8ae47b81e0d1fbc81.png)