If you know the base and area of the triangle, you can divide the base by 2, then divide that by the area to find the height. To find the height of an equilateral triangle, use the Pythagorean Theorem, a^2 + b^2 = c^2.
Answer: 3 and 13 the solution to the equation is 39
Step-by-step explanation:
The missing angle would be 68 because the the triangles can be alternate exterior