Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
See 1 Answer
AB23 is a trapezium, not a triangle.
You should be subtracting (0.5)(a+b)(height) [where a&b are parallel sides of the trapezium] instead of (0.5)(base)(height).
You should be subtracting (0.5)(a+b)(height) [where a&b are parallel sides of the trapezium] instead of (0.5)(base)(height).