answersLogoWhite

0


Best Answer

Three pentagons have a total of 15 sides. Each pentagon has 5 sides, so when you have 3 pentagons, you would multiply 5 sides by 3 pentagons to get 15 sides in total.

User Avatar

ProfBot

4mo ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

15

This answer is:
User Avatar

User Avatar

Anonymous

Lvl 1
4y ago

15 sides

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many sides does 3 pentagons have?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How many sides do 5 decagons and 3 pentagons have altogether?

A pentagon has five sides, and a decagon has ten sides. So 3 pentagons and 5 decagons have (35)+(510) = 65 sides altogether


How many sides do 2 quadrilaterals and 3 pentagons have altogether?

A quadrilateral has four sides and a pentagon has five. So 2 quadrilaterals and 3 pentagons have 2x4 +3x5 sides = 8 + 15 = 23 sides altogether.


How many sides do 2 pentagons 3 nonagons and 2 hexagons have in all?

They have 49 sides.


How many sides do 3 pentagons 5 heptagons and 4 hexagons have in all?

74 sides


How many sides do eleven pentagons have?

There are 11 times 5 = 55 sides in 11 pentagons.


How many sides do five pentagons and three quadrilaterals have altogether?

A pentagon has five sides, and a quadrilateral has four sides. So five pentagons and three quadrilaterals have 5*5 + 3*4 sides = 25 + 12 sides = 37 sides.


How many sides does 4 pentagons have?

A pentagon has 5 sides. If you have 4 pentagons, you use: 4x5=20. Therefore, 4 seperate pentagons have 20 sides. This is not true if you have them combined however.


How many sides do 5 hexagons 3 pentagons and 5 triangles have in all?

There are: (5*6)+(3*5)+(5*3) = 60 sides


How many sides does 100 pentagons have?

500


How many sides are there in 4 pentagons?

20 :)


How many sides does 5 pentagons 3 hexagons and 1 octagon have?

Altogether there are: (5*5)+(3*6)+(1*8) = 51 sides


How many sides do 4 decagons 5 dodecagons and 3 pentagons have altogether?

A decagon has 10 sides, a dodecagon 12, and a pentagon 5. So 4 decagons, 5 dodecagons, and 3 pentagons have 4*10 + 5*12 + 3*5 sides = 40 + 60 + 15 = 115 sides altogether.