๐ What is a Rectangle?
A rectangle is a four-sided shape where every angle is a right angle (90 degrees). Think of it like a stretched-out square! It has two pairs of sides that are equal in length.
๐ผ What is a Triangle?
A triangle is a shape with only three sides and three angles. There are many kinds of triangles, like equilateral (all sides equal), isosceles (two sides equal), and scalene (no sides equal).
๐ Rectangle vs. Triangle: Side-by-Side Comparison
| Feature |
Rectangle |
Triangle |
| Number of Sides |
4 |
3 |
| Number of Angles |
4 (all 90 degrees) |
3 |
| Opposite Sides |
Equal in length |
Not applicable (only one set of sides) |
| Types |
Square (special type of rectangle) |
Equilateral, Isosceles, Scalene, Right Triangle, Acute Triangle, Obtuse Triangle |
| Formula for Area |
$A = l \times w$ (length times width) |
$A = \frac{1}{2} \times b \times h$ (one-half times base times height) |
๐ Key Takeaways
- ๐ข A rectangle has four sides and four right angles, while a triangle has only three sides and three angles.
- ๐ Rectangles have two pairs of equal sides, but triangles can have all sides different or some sides equal.
- ๐ The angles in a rectangle are always right angles (90 degrees), but triangles can have different types of angles.
- ๐ก Rectangles are quadrilaterals (four-sided shapes), while triangles are, well, triangles!
- ๐งฎ Area calculation differs significantly: $A = l \times w$ for rectangles versus $A = \frac{1}{2} \times b \times h$ for triangles.