All categories

3 years ago

The base of a pyramid has n sides. Write and expression for the number of faces of the pyramid

Mathematics

1 answer:

11111nata11111 [884]3 years ago

5 0

Remark

The number of faces reaching out in the 3rd dimension of the pyramid = the number of edges on the base.

Givens

Number of edges (or sides on the base)= e

Number of faces = f

Formula

F = e + 1 Don't forget that the base is also a face.

You might be interested in

Work out the length of the following rectangles

tiny-mole [99]

(a) a = 10.9 cm

(b) b = 20.78 cm

(c) c = 4.06 cm

<u>Explanation:</u>

(a)

height, h = 5cm

Hypotenuse, H = 12cm

Base, a = ?

Using pythagoras theorm:

(H)² = (h)² + (a)²

(12)² = (5)² + (a)²

119 = a²

a = 10.9 cm

(b)

Hypotenuse, H = 24 cm

Base, a = 12 cm

Height, b = ?

Using pythagoras theorm:

(H)² = (b)² + (a)²

(24)² = (b)² + (12)²

432 = b²

b = 20.78 cm

(c)

height, h = 4 cm

Hypotenuse, H = 5.7 cm

Base, c = ?

Using pythagoras theorm:

(H)² = (h)² + (c)²

(5.7)² = (4)² + (c)²

16.49 = c²

c = 4.06 cm

8 0

3 years ago

PLEASE SOMEONE HELP ME I NEED TO TURN IT IN BY 12 HELP THANK YOY

Vladimir79 [104]

Answer:

Its C

Thanks

Step-by-step explanation:

hope i helped

6 0

3 years ago

CORRECT ANSWER WILL GET BRAINEST (50 points)

Katarina [22]

Answer:

Pedro had 1,479 base hits and Ricky had 1,200 base hits :)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

-4(5+n) = -12 need help

user100 [1]

First, simplify out the brackets:

-20 - 4n = -12

Then, combine like terms by moving the -20 to the other side

-4n = -12 + 20

-4n = 8

Divide by -4 on both sides to isolate the n

n = 8/-4

n = -2

7 0

3 years ago

Read 2 more answers

Gdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgdsgds

KATRIN_1 [288]

Yes and thank you for the points

4 0

2 years ago

Read 2 more answers