antique illustration, mathematics and geometry: quadrilateral, trapezium (trapezoid) - 梯形 幅插畫檔、美工圖案、卡通及圖標
educational illustrations by matching words for young children. learn words to match pictures. as shown in the shape category - 梯形 幅插畫檔、美工圖案、卡通及圖標
seamless geometric line pattern of repeating triangular and trapezoidal shapes on a white background, creating a clean, modern wallpaper-like surface with a subtle tiled rhythm. - 梯形 幅插畫檔、美工圖案、卡通及圖標
vector illustration of trapezoid with alphabet letter t upper case or capital letter for children learning practice abc - 梯形 幅插畫檔、美工圖案、卡通及圖標
line drawing illustration demonstrating a geometric layout of roman opus musivum mosaic tiling - 梯形 幅插畫檔、美工圖案、卡通及圖標