Q: What is the area of a rectangle that is 45 cm by 20 cm?

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The area of a rectangle is: length * width= 45 cm * 30 cm = 1350 cm^2

The area of the rectangle is 1350 square centimeters. 45 cm * 30 cm = 1350 cm2Area = 45*30 = 1350 square cm

1,350cm

It is: 45*29 = 1305 square cm

The perimeter of a rectangle measuring 20x45 centimeters is (2*20) + (2*45) = 40 + 90 = 130 cm

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The area of a rectangle is: length * width= 45 cm * 30 cm = 1350 cm^2

The area of the rectangle is 1350 square centimeters. 45 cm * 30 cm = 1350 cm2Area = 45*30 = 1350 square cm

we know,area of rectangle = l * b perimeter= 45*30=1350 cm ^2

Area = 45*30 = 1350 square cm

1,350cm

It is: 45*29 = 1305 square cm

Width of rectangle: 20/5 = 4 cm

Multiply 30 by 45 and call it cm2.

Find the area of a parallelogram who area is 3cm and base is 7cm

The perimeter of a rectangle measuring 20x45 centimeters is (2*20) + (2*45) = 40 + 90 = 130 cm

The perimeter and area don't depend on each other. Knowing one doesn't tell you the other. -- A circle with perimeter (circumference) of 20 cm has area of 31.83 cm2. -- A square with perimeter of 20 cm has area of 25 cm2 . -- A (9 x 1) rectangle has perimeter of 20 cm and area of 9 cm2 . -- A (8 x 2) rectangle has perimeter of 20 cm and area of 16 cm2 . -- A (7 x 3) rectangle has perimeter of 20 cm and area of 21 cm2 . -- A (6 x 4) rectangle has perimeter of 20 cm and area of 24 cm2 .

The area is already shown as 20 cm2 . A rectangle with sides of 4 cm and 5 cm will have an area of 20 cm2 and a perimeter of 18 cm.