To find the area of this kind of shape, you need to divide the shape into parts. Let’s cut the top. So we have a small rectangle and a big rectangle now. Let’s solve for the smaller one first. The area of a rectangle is length x width. So the length is 16cm and the width is 3cm. 16 • 3 = 48cm The area of the smaller rectangle is 48cm. Now let’s solve for the larger rectangle. The length is 22cm. You find that by doing 16+3+3. The width is 11cm. 22 • 11 = 242cm. The area of the larger rectangle is 242cm. Now to find the area of the whole thing, add the area of the rectangles. 48cm + 242cm = 290cm. The area of the polygon is 290cm.
