lấy 47,1 : 3,14 = 15
rồi lấy 15 x 4 vì 15 là diện tích ô vuông nhỏ trong cái hình vuông = 60 cm2
lấy 47,1 : 3,14 = 15
rồi lấy 15 x 4 vì 15 là diện tích ô vuông nhỏ trong cái hình vuông = 60 cm2
Find the area of a circle with a radius of 2cm.
Answer: The area of a circle is: ............
Half of the perimeter of a rectangular school yard is 0.24km. The width is of the length. Find the area of the yard in square meters?
The diagram shows a circle and 2 quater circles in a square.
Find the area of the shaded region.
(Take n=3.14)
The sum of area of all squares in the following figure is 56250 dm2.The area of the smallest square is ....cm2.
A rectangular field has a width of 24.5m and its area equals the area of a square with the sides of 35m. Find the perimeter of that rectangular field.
if the area of the smallest square 12cm2,what is area of the entire figure
if the area of the smallest square 12cm2,what is area of the entire figure
the area of a rectangle is 7232 cm2.the area of a circle is 5346 cm2. the sum of area of this rectangle and this circle is...dm2
the perimeter of a square is 80 cm .what is the the area of this square