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PYRAMID

Group: Aqmalia

ShafiraSabila AnjaniAnindhitoJulio CaesarFebiola Efriani

What Is Pyramid? Is geometrical polygon-shaped base

and the establishment of a triangular field that intersect at one point. Intersection of the straight sides of the pyramid called cusp pyramid.

What Are The Example?

1 2 3 4

1. Triangular Pyramid

2. Rectangular Pyramid

3. Pentagonal Pyramid

4. Hexagonal Pyramid

Lines Of Pyramid

Triangular Pyramid has 6 lines Rectangular Pyramid has 8 lines Pentagonal Pyramid has 10 lines Hexagonal Pyramid has 12 lines

FORMULA

Determining The Lines of Pyramid

Lines = 2n

Where n is the type of the pyramid base. If the type of base on the pyramid is square, then n = 4. If the type of base on the pyramid is a triangle, then n = 3, and so on.

Side Of Pyramid

Sides of Triangular Pyramid

•Triangular Pyramid has 4 side

•The field of side: Triangle(4)

Sides of Rectangular Pyramid

Rectangular Pyramid has 5 side

The field of side: Triangle (4) Rectangle

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Corners and Vertex

In the Triangular Pyramid, there are 9 corners and there are 4 vertex.

In the Rectangular Pyramid, there are 12 corners and there are 5 vertex.

FORMULA

Determining The Points of Pyramid

points = n + 1

Where n is the type of the pyramid base. If the type of base on the pyramid is square, then n = 4. If the type of base on the pyramid is a triangle, then n = 3, and so on.

Volume Pyramid

Surface Area

Surface area pyramid == Area□ ABCD + Area ∆ TAB + Area ∆

TBC + Area ∆ TCD + Area ∆ TAD

Luas Permukaan pada Limas = Luas alas + jumlah seluruh luas sisi

tegak

Question Volume of Pyramid

Base pyramid form a right triangle with sides of length 12 cm, 16 cm, 20 cm. If the pyramid height 21 cm, then the volume of the pyramid is....

Lalas = ½ x a x t

= ½ x 16 x 12= 96 cm²

Vlimas = 1/3 x Lalas x tLimas

= 1/3 x 96 x 21

= 672 cm³

ANSWER

Question Surface Area of Pyramid

Picture below is a rectangular pyramid.

ABCD with base side length of 6 cm

and 4 cm tall pyramid. Then the

surface area of the pyramid is ...

1. OF = ½ x AB = ½ x 6 = 3 cmTF² = TO² + OF²

= 4² + 3² = 16 + 9 = 25TF = √25 = 5 cm

Lp = Lalas + Lsisi tegak

= AB x BC + 4 x ½ x BC x TF

= 6 x 6 + 4 x ½ x 6 x 5

= 96 cm²ANSWER

THANK YOU :D