24cm
find the perimeter and area of a rectangle that is 15cm long and 5cm wide
Perimeter of rectangle: 2*(11.5+405) = 833 cm
If the given dimensions are that of a rectangle then perimeter is: 34 feet
As a rectangle has four sides then 11 + 4 + 11 + 4 = 30 meters perimeter
10cm 2l + 2w 4+6=10cm
24cm
Your answer is in the question, meaning, a rectangle that is 24 cm long is probably 24 cm long.
Well, honey, the perimeter of a rectangle is calculated by adding up all the sides, so for your 23cm long and 10cm wide rectangle, you just add up all the sides: 23 + 23 + 10 + 10 = 66cm. Voilà, you've got yourself a perimeter!
You cannot find the perimeter unless the rectangle is a regular rectangle (a square) in which case the perimeter is 4 times the square root of the area. With just the area the shape of the rectangle could be any number of shapes with different perimeter, for example, imagine 6 square units 1cm by 1cm arranged in a 1*6 configuration to give a long thin rectangle, the perimeter would be 6+6+1+1=14cm, the same 6 arranged in a 3*2 rectangle would have the same area, but a perimeter of 3+3+2+2=10cm, for this reason a rectangle's perimeter cannot be determined from the area alone.
24cm (4 sides x 6 = 24)
find the perimeter and area of a rectangle that is 15cm long and 5cm wide
(1 + 10) × 2 = 22 cmNote: there are ten mm to 1 cm.So 10 mm is 1 cm
Perimeter of rectangle: 5+3+5+3 = 16cm
Perimeter of rectangle: 24+17+24+17 = 82 meters
12.5cm
10mm*10cm = 1cm*10cm = 10 square cm.