There is a round flower bed in the park. The rose bed with a diameter of 10 meters inside is surrounded by a chrysanthemum with a width of 2 meters outside. Ask about the area of the chrysanthemum

There is a round flower bed in the park. The rose bed with a diameter of 10 meters inside is surrounded by a chrysanthemum with a width of 2 meters outside. Ask about the area of the chrysanthemum

It is "big circle area - small circle area = ring" 10 + 2 = 12 (m) (12 / 2) * (12 / 2) = 36 (m) 36 * 3.14 = 113.04 (M2) -- - big circle area (10 / 2) * (10 / 2) = 25 (m) 25 * 3.14 = 78.5 (M2) -- - small circle area 113.04-78.5 = 34.54

In a 25.12 meter flower bed, 1 / 4 of them are roses, and the rest are lilies and tulips in a ratio of 2:1
How much area are lilies and tulips planted?

25.12 ﹣ 3.14 ﹣ 2 = 4m
Area: 3.14 × 4 & # 178; = 50.24 square meters
50.24 × (1-1 / 4) = 37.68 square meters
Lilium: 37.68 ÷ (1 + 2) × 2 = 25.12 M2
Tulip: 37.68-25.12 = 12.56 M2

How many M & sup 2 do tulips and roses occupy in a semicircular flower bed with a radius of 2m

3.14×2×2=12.56（m²）
12.56 × 1 + 1 / 3 = 3.14 (M & sup2;)
12.56 × 1 + 3 / 3 = 9.42 (M & sup2;)
A: tulip is 3.14 (M & sup2;) and rose is 9.42 (M & sup2;)

Is it multiplication or division to convert rice price into code price?

Yard = 3 feet = 0.9144 meters
1 meter = 1.0936 yards
0.9144 x price per meter = price per yard

How to convert gram weight of yard into gram weight of square meter
How to convert 170 kg / yd 58 inches into gram weight per square meter?

1 square yard = 0.836 square meter 1 g / square meter = 0.836 g / square yard 170 kg / square yard = 203.35 kg / square meter = 203 350 g / square meter 1 yard = 0.9144 m 170 kg / yard = 186.53 kg / meter

Is GSM a gram or a gram per square meter?
Gram weight unit

GSM = g / SM = gram per square meter, which means gram weight per square meter

How to convert square gram weight into meter gram weight
The gray cloth I weigh out on a scale is 71 square grams. How many grams should the weight be? What I want is not the weight of square meters, but the weight of meters. Please help me to calculate
I don't understand at all. I asked someone to help me weigh 71 square meters of grey cloth. The door width of my upper machine is 165 and that of my lower machine is 160

71 × (160 + 165) / 2 = 11537.5mg

How to convert square yard / gram weight into square meter / gram weight?
Example 1: how can a cloth weighing 273 grams per square yard be converted into ounces?
Example 2: how can a cloth weighing 273 g / m2 be converted into ounces?
Thank you for your detailed explanation
How many square yards is one square meter?

1 square yard = 0.836 square meters
1 oz = 28.35 G

membrane
Length: 5700m
Width: 460cm
Thickness: 15um
Weight 46.3kg
How to calculate the grams per square meter
It's wrong. How to calculate the gram per cubic meter

Unit conversion
1m=100cm=1000000um
1kg (kg) = 1000K (g)
You'll forget the rest, won't you?

How many meters is a kilo of knitted cloth

This is obviously an empirical value. The corresponding length of different cloth is definitely different. Of course, there may be an empirical formula. You can weigh the weight of cloth of which you know the length, and then calculate it. For example, how long should you feel in 1m, weigh the weight, and then the length under the corresponding weight can be calculated. Let the length be x, then x / 1m = 0.5kg / (your weight), and then calculate X