If it doubles the base of the triangle, will its area double?

To answer this question, you need to remember the formula for the area of a triangle:
S = ah / 2
To visually prove my answer, let’s pick up the values “a” and “n”
1) Let a = 2, h = 4, then the area is 2 * 4/2 = 4
Increase the base value by 2 times
2) Let a = 4, h = 4, then the area is 4 * 4/2 = 8
Let’s make the base 2 times bigger
3) Let a = 8, h = 4, then the area is 8 * 4/2 = 16
Conclusion: if the base is enlarged 2 times, then its area will increase 2 times.
Q.E.D