Perimeter
What is the perimeter of a square with each side measuring 4 cm?
16cm
What is the area of a square with a side of 5 cm?
25cm squared
The area of a rectangle is found by adding the length and width.
False. LxW=A
A rectangle is 8 cm long and 5 cm wide. What is the perimeter?
26cm
If a rectangle has a length of 9 cm and a width of 6 cm, what is the area?
54cm squared
We can use the operation + (addition) to find the area
False. We can only use operation x (multiplication)
A triangle has side lengths of 21 cm, 8 cm, and 19 cm. What is the perimeter?
48cm
A rectangle has an area of 48 cm² and a length of 6 cm. What is its width?
8cm. (6x8=48)
you can only use the formula lxw to find the area of rectangles, and no other shapes
True
A rectangle has a perimeter of 36 cm. If one side is 10 cm, what is the length of the other side?
8cm. 10+10=20 +8+8=36
A classroom floor is 12 m long and 7 m wide. What is the area?
84cm squared
A rectangle with a length of 8cm and width of 3cm has the same perimeter as a square with 6 cm sides.
false! Rectangle is 8 + 3 + 8 + 3 = 22 cm. Square is 6 + 6 + 6 + 6 = 24 cm
what would the perimeter be of the following irregular shape? 10cm+21cm+18cm+21cm+8cm+5cm+40cm
123cm
A square has an area of 64 cm². What is the length of one side?
8cm. (8x8=64)
If two shapes have the same area, they must also have the same perimeter.
False! Different shapes can have the same area but different perimeters — like a 6×2 rectangle and 4×3 rectangle both have an area of 12. But the 6x2 perimeter is 16, and the 4x3 perimeter is 14.