Question

Each vertical cross-section of the triangular prism shown below is an isosceles triangle.

Answer 1

Answer:

x = 3 units

Step-by-step explanation:

use Pythagorean theorem:

a² + b² = c²

where a = h

           b = 8/2  = 4

           c = 5

plugin values into the formula:

h² + 4² = 5²

h² = 5² - 4²

x = √9

x = 3

Answer 2

Answer: 3

Explanation: I can confirm it's correct on Khan Academy, I guarantee it.