The total area of section 2 is 10.5 unit² which is the correct answer and is option B.
In the given graph, Section 2 has coordinates (2,0), (2,5), (5,0), and (5,2).
So, dividing section 2 into a right-angled triangle and a rectangle.
The right-angled triangle has coordinates (2,2), (2,5), and (5,2) with base = 3 units and height = 3 units.
The rectangle has coordinates (2,0), (2,2), (5,0), and (5,2) with length = 3 units and height = 2 units
So total area = area of right-angled triangle + area of rectangle
⇒ 1/2(base × height) + (length × height)
⇒ (1/2 × 3 × 3) + (3 × 2)
⇒ 1/2(9) + (6) = 4.5 + 6 = 10.5 unit²
To know more about the area of a right-angledtriangle: