6 (base) * 5 (height) / 2 = 15.
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The area of a triangle is half the base times height.
Formula for area of Triangle: a=0.5(bh) Where b is the base length and h is the height. For example, a triangle of base 10 and height 5 has an area of 25.
area of a triangle is half the base times the height .5*22*28=308
Area of a triangle = 1/2 * base * height = 1/2*3*5 = 7.5 square metres.
The area is 30 units2