# Can a triangle tesellate to form a rectangle?

Two right-angled triangles placed hypotenuse to hypotenuse with one inverted form a rectangle...

### Can a triangular pyramid be called a rectangle pyramid?

No. A triangular pyramid describes a triangle whose base is a triangle (not just the sides which define it as a pyramid), whereas a rectangular pyramid is one whose base is a rectangle. A triangle and a rectangle are not the same (a triangle is not a rectangle, and a rectangle is not a triangle), so it would be incorrect to refer to a triangle-based pyramid as a rectangle pyramid.

### A triangle is within a rectangle. how to find the ratio of the area of triangle to the rectangle?

Sounds like the triangle is spread out so that (the point is at the top of the rectangle) and (the base of the triangle is the same as the base of the rectangle). Base of rectangle = base of triangle Height of rectangle = height of triangle Write the formulas: Area of the rectangle = (base) times (height) Area of triangle = (one half of) (base) times (height) Can you see the ratio now ?

### How do you find the area of a rectangle with a triangle attached to the side?

you split your shape in half, (The rectangle and the triangle), by putting a line through it and then calculate the area of the rectangle and then calculate the area of the triangle, half the area of the triangle then add the area of the triangle and the rectangle together!Then you should have your answer!

### How is the triangle formula derived from the area of rectangles?

The area of a triangle is expressed using the formula A=(1/2)(bh) Where A is area Where B is length of the base of the triangle. Where H is the height of the triangle. The area of a rectangle is A=BH, Where B is the length of the base of the rectangle. Where H is the height of the rectangle. Because a triangle, essentially, is a half of a rectangle, you find the area of the…