Answer:
The area of a triangle is given by the formula A = 1/2 * base * height, where "base" is the length of the triangle's base and "height" is the length of the perpendicular line segment from the base to the opposite vertex.
If the base of a triangle is doubled, the height remains constant, and the area of the triangle will also double. This is because the area of a triangle is directly proportional to its base length.
In the case of the given triangle, if the base is doubled from 3 centimeters to 6 centimeters, the area of the triangle will become:
A = 1/2 * 6 cm * 6 cm = 18 cm²
Therefore, the area of the triangle will increase from 9 cm² to 18 cm² if the base is doubled while the height remains constant at 6 cm.
Explanation: