# Year 4 Maths Challenge Spring 1

Here is a plan for a new zoo that will be opening in 2023.

Bronze

Calculate the perimeter for the following animal enclosures in squares and ensure you show the calculations.

Example:

The koala enclosure perimeter is 3 +8+3+8=22 squares

What is the perimeter of these enclosures?

1. Panda
2. Giraffe
3. Penguins
4. Rhino
5. Snake

Silver

Which animal has the enclosure with the longest perimeter?

Which animal has the enclosure with the shortest perimeter?

Gold

Each square on the plan is equivalent to 1 metre.

Platinum

You have been asked to design a new zoo for the community! You have been given specific building requirements to follow. Make sure you use squared paper and a ruler!

Each enclosure has 4 sides and here are the measurements in squares. Calculate the perimeter for the animals and draw the enclosures ensuring you label them.

You need to plan out the second row of enclosures and write your chosen perimeters and calculations.

Bring your completed zoos with perimeter measurements into school.

1. #### Rehyan M.

Panda
6+7+6+7=24
Giraffe
9+3+9+3=24
Penguins
10+5+10+5=25
Rhino
12+4+12+4=32
Snake
6+3+6+3=18
Bronze the biggest perimeter is the rhino because he has 32 cm

2. #### Eliza H.

Homework
Bronze
1. 7+5+7+5=24-Panda
2. 9+3+9+3=24-Giraffe
3. 5+10+5+10=30-Penguins
4. 12+4+12+4=32-Rhino
5. 6+3+6+3=19-Snake
Sliver
1. 8+10+8+10=36
2. 12+4+12+4=32
The Zebra has the longest perimeter.
The tortoise has the shortest perimeter
Gold
Parrot-1600cm=16m
Walrus-22m
Panda-400m=24cm
Mo is correct because the Panda enclosure is bigger than the walrus. Alex is incorrect because the parrot is smaller.

3. #### Nma M.

Bronze:
Panda 5+7+5+7=24cm
Giraffe 3+9+3+9=24cm
Penguins 10+5+10+5=30cm
Rhino 4+12+4+12=32
Snake 3+6+3+6=18cm
Silver:
Rhino=32 cm longest perimeter
Snack =18 cm shortest perimeter
Gold:
Mo is correct because 2400 cm it’s 24m and 22m smaller than 24m.

4. #### Mohammed D.

Panda 5+7+5+7=24
Giraffe 9+3+9+3 =24
Penguins 10+5+10+5=30
Rhino 12+4+12+4=32
Snake 6+3+6+3=18

Silver

The longest perimeter is 3+16+3+16 = Gorilla
The smallest perimeter is turtle 3+3+3+3=12

5. #### Ahmed O.

Panda 5+7+5+7=24
Giraffe 9+3+9+3=24
Penguins 15+10+5=30
Rhino 12+4+12+4=32
Snake 3+6+3+6=18

• #### Ahmed O.

Silver
Gorilla with the perimeter of 16 is the longest perimeter.
how ever the shortest perimeter belongs to the turtel

6. #### Bethany P.

Panda:7+5+7+5=24
Penguin:10+5+10+5=30
Rhino:12+4+12+4=32
Snake:3+6+3+6=18
Giraffe:3+9+3+9=24

Silver
The Rhino has the biggest perimeter because it has the biggest number all together.
The snake has the shortest perimeter because it has the smallest number all together .

7. #### Rustam M.

Snake-6+3+6+3 18
Giraffe-3+3+9+9 24
5+5+10+10 30
Rhino 12+12+4+4 32
Panda 5+7+7+5 24
Silver
Rhino has the largest number but penguins is the closest

8. #### Aisha A.

Panda 7+7+5+5= 24. Bronze
Giraffe 9+9+3+3= 24
Penguins 5+10+5+10=30
Rhino 12+4+12+4=32
Snake 6+3+6+3=18

BRONZE
1.PANDA 35
2.GIRAFF 27
3.PENGUIN 50
4.RHINO 48
5.SNACK 18

10. #### Inder S.

BRONZE
PANDA = 5 +7+5+7= 24
Giraffe = 3+9+3+9 = 24
Penguins = 10+5+10+5 = 30
Rhino = 12+4+12+4= 32
Snake =6+3+6+3=18

SILVER

Gorilla has the enclosure with the largest perimeter 38 .
Turtle has the enclosure with the smallest perimeter 12.

GOLD

Mo is correct . Because Walrus enclosure perimeter is 22m and Panda enclosure perimeter is 24 meter . 24 m = 2400 cm.

11. #### Sayda A.

panda 7+5+7+5=24cm
ghirafft 3+9+3+9=24cm
penguins 5+10+5+10=30cm
rhinos 12+4+12+4=32cm
snake 3+6+3+6=18cm
silver the longest animals perimenter is the rhino
the animal with the shortest perimenter is the snake
gold i ageer with mo because it not meter it is cm it is not in 100

12. #### Safa S.

BRONZE
1. Panda 7 + 7 + 5 + 5 = 24
2. Giraffe 9 + 9 + 3 + 3 = 24
3. Penguins 10 + 10 + 5 + 5 = 30
4. Rhino 12 + 4 + 12 + 4 = 32
5. Snake 6 + 6 + 3 + 3 = 18

SILVER
What is the perimeter of these enclosures?
Rhino with the longest enclosure and snake with the shortest enclosure.