2. Find the area of this triangle.
The right triangle has a base of 9 mm and a slant side of 15mm
54 mm^2
24 mm^2
141 mm^2
70.5 mm^2
The area of a triangle is given by the formula A = 0.5 * base * height. In this case, the base is 9mm and the slant side is 15mm, so we can calculate the height using the Pythagorean theorem:
height^2 + 9^2 = 15^2
height^2 + 81 = 225
height^2 = 144
height = 12mm
Now we can calculate the area:
A = 0.5 * 9mm * 12mm
A = 54 mm^2
Therefore, the area of the triangle is 54 mm^2.
Answer: 54 mm^2