Answer:
336 square centimeters
Explanation:
The area of a triangle is given by the formula:
A = (1/2)bh, where b is the base and h is the height.
The original triangle has a base of 7 cm and a height of 6 cm, so its area is:
A = (1/2)(7 cm)(6 cm) = 21 cm^2
When the triangle is dilated by a scale factor of 4, all of its dimensions are multiplied by 4. So the new base is 4 times the original base (28 cm) and the new height is 4 times the original height (24 cm).
The area of the new triangle is:
A' = (1/2)(28 cm)(24 cm) = 336 cm^2
Therefore, the area of the new triangle is 336 square centimeters.
Hope this helps^^