The area of a triangle is 60 square centimeters less than that of a parallelogram of equal height and equal ground. What is the area of this triangle?

The area of a triangle is 60 square centimeters less than that of a parallelogram of equal height and equal ground. What is the area of this triangle?

The area of this triangle is 60 square centimeters

The bottom of a triangle is a, the bottom is expanded three times, the height is unchanged, and the area is increased by 18 square centimeters. What is the area of the original triangle

9 square centimeters

The area of a triangle is 56 square centimeters. If the height is reduced by 2 times and the bottom is expanded by 3 times, how many square centimeters is the area

Area = 56 △ 2 × 3
=84 square centimeters

If the bottom and height of a triangle are tripled, the area will be increased by 160 square centimeters. What is the area of this triangle?

Let the area of the original triangle be X
9X=X+160
X = 20 (square centimeter)