Well, darling, to find the area of a rectangle, you simply multiply the length by the width. In this case, 20cm x 40cm gives you a grand total of 800 square centimeters. Voila, you've got your area!
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To determine how many 5cm x 5cm squares can be cut from a 20cm x 40cm card, first calculate the area of the card, which is 20cm x 40cm = 800cm². The area of one square is 5cm x 5cm = 25cm². Dividing the area of the card by the area of one square, 800cm² ÷ 25cm², gives you 32 squares.
The original area of the rectangle is 20 cm × 40 cm = 800 cm². When each dimension is reduced by 20%, the new dimensions become 16 cm (20 cm - 20% of 20 cm) and 32 cm (40 cm - 20% of 40 cm), giving a new area of 16 cm × 32 cm = 512 cm². The reduction in area is 800 cm² - 512 cm² = 288 cm². To find the percentage reduction, divide the area reduction by the original area: (288 cm² / 800 cm²) × 100% = 36%. Thus, the area is reduced by 36%.
160
220 cm2
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To find the area of a regular hexagon with side length of 40cm, consider that since it is regular, then it consists of 6 equilateral triangles of side 40cm. Half of each of those triangles is a right triangle. By the pythagorean theorem, we know that if the hypotenuse is 40cm, and one side is 20cm, then the other side is the square root of (40cm squared - 20cm squared) or about 34.64cm. That makes the area of each of those 12 right triangle to be about 692.8cm, so the total area of the hexagon is about 8313.8cm.
To determine how many 5cm x 5cm squares can be cut from a 20cm x 40cm card, first calculate the area of the card, which is 20cm x 40cm = 800cm². The area of one square is 5cm x 5cm = 25cm². Dividing the area of the card by the area of one square, 800cm² ÷ 25cm², gives you 32 squares.
16000 cubic centimeter
160
220 cm2
Multiply the length of the rectangle by the width. For example: 34cm x 20cm = 680cm2
The area of a rectangle is 20 x 50 = 1,000 cm^2
80 meters
Answer: 4Area of Rectangle= b x hWorking Out:1. 5cm x 120cm = 600cm22. 10cm x 60cm = 600cm23. 15cm x 40cm = 600cm24. 20cm x 30cm = 600cm2
Answer: 4Area of Rectangle= L x WWorking Out:1. 5cm x 120cm = 600cm22. 10cm x 60cm = 600cm23. 15cm x 40cm = 600cm24. 20cm x 30cm = 600cm2
The dimensions of the rectangle are 5 cm by 4 cm