Second Grade Finding Perimeter Activity Sheet (teacher made) - Free Printable

Let’s solve each shape one by one. Remember, perimeter means adding up all the sides of a shape.

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Top Row:

1. Pentagon (5-sided shape)
Sides: 6 in, 6 in, 8 in, 8 in, 5 in
Add them:
6 + 6 = 12
12 + 8 = 20
20 + 8 = 28
28 + 5 = 33 inches

2. Triangle (equilateral — all sides same)
Sides: 5 in, 5 in, 5 in
Add them:
5 + 5 + 5 = 15 inches

3. Right Triangle
Sides: 8 in, 5 in, 6 in
Add them:
8 + 5 = 13
13 + 6 = 19 inches

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Middle Row:

4. Trapezoid
Sides: 5 in, 5 in, 6 in, 6 in
Add them:
5 + 5 = 10
6 + 6 = 12
10 + 12 = 22 inches

5. Rectangle
Sides: 8 in, 8 in, 5 in, 5 in
Add them:
8 + 8 = 16
5 + 5 = 10
16 + 10 = 26 inches

6. Square
All sides are 8 in
Add them:
8 + 8 + 8 + 8 = 32 inches

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Bottom Row (colored version — same shapes, just colored):

7. Pink Pentagon → Same as #1 → 33 inches

8. Green Triangle → Same as #2 → 15 inches

9. Yellow Right Triangle → Same as #3 → 19 inches

10. Pink Trapezoid → Same as #4 → 22 inches

11. Blue Rectangle → Same as #5 → 26 inches

*(Note: The last orange square is cut off, but if it’s like the white one above, it would be 8+8+8+8=32 — but since it’s not fully shown, we’ll stick to what’s visible and labeled.)*

Wait — looking again at the bottom row in the right image:

- Pink trapezoid: sides 5 in, 5 in, 6 in, 6 in → 5+5+6+6 = 22
- Blue rectangle: 8 in, 8 in, 5 in, 5 in → 8+8+5+5 = 26
- Orange square? It says “8 in” on top and side — so likely 8x8 → 8+8+8+8 = 32

But in the original left worksheet, there are only 6 boxes. The right one has more because it’s color-coded and maybe expanded. Since the user probably wants answers for all visible labeled shapes in the main task, let’s list all that have numbers.

Actually, rechecking — the instruction says “Figure out the perimeter of each shape.” In both worksheets, the shapes with labeled sides are:

Left worksheet (black and white):

Row 1: pentagon, triangle, right triangle → 33, 15, 19
Row 2: trapezoid, rectangle, square → 22, 26, 32

Right worksheet (color) shows same 6 plus 3 more below? Wait no — actually, the right image seems to be a larger version with colors, and includes 9 shapes total? Let me count carefully.

In the right image:

Top row: pink pentagon, green triangle, yellow triangle → 3 shapes
Middle row: pink box (for pentagon answer), green box (triangle), yellow box (right triangle) — these are answer boxes, not shapes to calculate.
Then below that: pink trapezoid, blue rectangle, and part of an orange square.

So actual shapes to calculate in right image:

1. Pink pentagon: 6,6,8,8,5 → 33
2. Green triangle: 5,5,5 → 15
3. Yellow triangle: 8,5,6 → 19
4. Pink trapezoid: 5,5,6,6 → 22
5. Blue rectangle: 8,8,5,5 → 26
6. Orange square: labeled 8 in on top and side → assume 8x8 → 32

So same 6 shapes as left worksheet.

Therefore, final perimeters:

- Pentagon: 33 in
- Equilateral triangle: 15 in
- Right triangle: 19 in
- Trapezoid: 22 in
- Rectangle: 26 in
- Square: 32 in

Double-checking each:

Pentagon: 6+6+8+8+5 = 33 ✔️
Triangle: 5×3 = 15 ✔️
Right triangle: 8+5+6 = 19 ✔️
Trapezoid: 5+5+6+6 = 22 ✔️
Rectangle: 8+8+5+5 = 26 ✔️
Square: 8×4 = 32 ✔️

All correct.

Final Answer:
33 in, 15 in, 19 in, 22 in, 26 in, 32 in