How do I solve it to get the area?

Question

Answer 1

The area of a triangle is 1/2 * length of base * height of triangle

In first triangle, base is 5.3 feet and height is 4.2 feet, so area = 1/2 * 5.3 * 4.2

In second triangle base is 7.4 yd and height is 4.6 yd, so area = 1/2 * 7.4 * 4.6

In third triangle base is 13.1 in and height is 14.5 in, so area = 1/2 * 13.1 * 14.5