Side length of the right triangle = 400 mmLet the other side of the right triangle be x mm.
According to the given condition, the other side is 3 times the first side:x = 3(400) = 1200 mm
To calculate the area of the right triangle, we use the formula:Area = (1/2) base height
Area = (1/2) 400 1200Area = 240,000 square mm
Therefore, the area of the right triangle is 240,000 square mm.
Side length of the right triangle = 400 mm
Let the other side of the right triangle be x mm.
According to the given condition, the other side is 3 times the first side:
x = 3(400) = 1200 mm
To calculate the area of the right triangle, we use the formula:
Area = (1/2) base height
Area = (1/2) 400 1200
Area = 240,000 square mm
Therefore, the area of the right triangle is 240,000 square mm.