A circle is fully defined by just one measure - its radius or diameter or circumference of area. I am sure there cannot be a circle with two measures as in the question!
60cm
The diameter is 19.1cm
To determine how many 60cm x 60cm tiles are needed for 18 square meters, first calculate the area of one tile. A 60cm x 60cm tile has an area of 0.6m x 0.6m = 0.36 square meters. Then, divide the total area (18 sq meters) by the area of one tile: 18 / 0.36 = 50. Therefore, you would need 50 tiles to cover 18 square meters.
15 cm.
The answer to the question is at the end of the question!
9,000
60cm
The diameter is 19.1cm
This is a matter of calculating the area of the two circles = πr2 In these cases the r = (1) 100 cm and (2) 150cm. Then you subtract the smaller area from the larger area.
To determine how many 60cm x 60cm tiles are needed for 18 square meters, first calculate the area of one tile. A 60cm x 60cm tile has an area of 0.6m x 0.6m = 0.36 square meters. Then, divide the total area (18 sq meters) by the area of one tile: 18 / 0.36 = 50. Therefore, you would need 50 tiles to cover 18 square meters.
15 cm.
The answer to the question is at the end of the question!
Perimeter is 60cm
150cm/25m = 150cm/2500cm = 0.06
60cm
20*60 = 1200 square cm
150cm - 12m = 138