IPA: /ˈrɛk.tæŋ.ɡl̩/
KK: /ˈrɛkˌtæŋɡl/
A shape that has four sides and four corners, where each corner forms a right angle.
The table is in the shape of a rectangle.
Rectangle → It is formed from "rectus" (meaning right or straight) and "angulus" (meaning angle). The word describes a shape with right angles, specifically a four-sided figure with straight sides.
Think of 'right' ('rectus') angles when you picture a rectangle, which is defined by having straight angles.