human
Calculate the area of a trapezium where the dimensions are given in different units What should replace the star to calculate the area of this trapezium?
 Area \( =\frac{90+40}{2} \times \) \(\color{gold}\bigstar\)
 ![Trapezium with parallel sides of lengths 90mm and 40mm. The length of one slanted side is 6cm and the perpendicular height is 5cm.]() \( 60 \)
gpt
Uses slant height instead of perpendicular height to find area of a trapezium