The side length of a square is 6cm. How to find the perimeter and area? Use the letter formula

The side length of a square is 6cm. How to find the perimeter and area? Use the letter formula


Perimeter = 4A = 4 * 6 = 24
Area = a * a = 6 * 6 = 36



Judgment: for square and circle with equal perimeter, the area of circle is larger than that of square


Dear landlord
Let the circumference of the circle be a
Then the square area is (A / 4) &# 178; = A & # 178 / / 16
The radius of the circle is a / 2 π, and the area is π * (A / 2 π) &# 178; = A & # 178 / 4 π
So, the area of the circle is large
I wish you every success



The difference between 3 / 8 of 24 and 7 / 3 is equal to 40% of a number


(24×3/8-7/3)÷40%
=(9-7/3)÷40%
=6 2 / 3 △ 40%
=100/6
=16 and 2 / 3



Fill six numbers in the circle, which are 5 / 12, 5 / 8, 2 / 5, 1 / 15, 11 / 40 and 7 / 24, so that the sum of the scores of two circles on each line is equal
It's filled with two opposite circles in a hexagon


I don't know your specific figure, so it's not easy to answer, but I can prompt you. Prompt: 5 / 12 = 50 / 120; 5 / 8 = 75 / 120; 2 / 5 = 48 / 120; 1 / 15 = 8 / 120; 11 / 40 = 33 / 120; 7 / 24 = 35 / 120. So you can easily do it! Because: 50 /



2 / 3 of a number is 24. What is 2 / 9 of it? A 8 B 24 C 12


Let a be x, X * (2 / 3) = 24, x = 36
36*(2/9)=8
I hope my answer will help you



2 / 9 + 1 / 2 △ 4 / 5 + 3 / 8


2/9+1/2÷4/5+3/8
=2/9+1/2×5/4+3/8
=2/9+5/8+3/8
=2/9+1
=1 and 2 / 9
=11/9



3 / 8 of a number is 57 more than 1 / 9 of it


Jia mengyaoni,
57÷(3/8-1/9)=216



(): 8 = 15 / () = () 9 / 10 = 0.75 = ()%
1 / 8 = 8: () = () / 16 = () 4 / 8 = ()%
9 / () = 6 out of 30 = 60% = (): 20 = () (decimal)
Specific size: 1 / 3 and 33.3% 1 and 100% 8% and 4 / 5, 3.6% and 0.36
Arrange the following numbers from large to small
5.18 (18 cycles) 5.18 (8 cycles) 5 and 9 of 50 51.9%


1 / 8 = 8: (64) = (2) / 16 = (32) 4 = (12.5)% 9 / (15) = 30 (18) = (10) 6 = 60% = (12): 20 = (0.6) (decimal) ratio: 1 / 3 and 33.3% 1 and 100% 8% and 43.6% and 0.363% 1 = 100% 8% < 5



The following are 18,22 / 7,3.1416,02001,3 / 5,0.14285,95 ℅ positive number sets, negative number sets, integer sets and rational number sets





Fill in the following numbers in the set of corresponding number set, - 18, 7 / 12, 3.1416, 0, 2001, - 3 / 5, - 0.142857.95%
Positive number set, negative number set, integer set, rational number set.


Integer set {- 18,02001,}