Cut the largest circle from a piece of iron 8 decimeters long and 6 decimeters wide. How many square decimeters is the remaining scrap area? If you're right, I'll take 50 extra

Cut the largest circle from a piece of iron 8 decimeters long and 6 decimeters wide. How many square decimeters is the remaining scrap area? If you're right, I'll take 50 extra

Cut the largest circle from a piece of iron 8 decimeters long and 6 decimeters wide. How many square decimeters is the remaining scrap area?
6/2=3 3*3*3.14=28.26 8*6-28.26=19.74

Cut the biggest circle on a piece of 8 decimeter square paper. What is the area of the leftover material

Circle radius = 8 △ 2 = 4 decimeters
Leftover area
=Square area - circle area
=8×8-3.14×4²
=64-50.24
=13.76 square decimeters

Use a square sheet of iron with a side length of 4 decimeters to cut out the largest circle. The area of this circle is______ Square decimeter

2, = 3.14 × 4, = 12.56 (square decimeter); answer: the area of this circle is 12.56 square decimeter; so the answer is: 12.56

In the middle of a circular iron sheet with a diameter of 4 decimeters, cut out the largest square. How many square meters is the square?
What is the area of the square in the circle?

The diagonal of the square is 4 decimeters in diameter, so the area of the square is (4 * 4) / 2 = 8
The circular area is 3.14 * 2 * 2
So the square area is of circular area: 8 / (3.14 * 4) = 2 / 3.14 = 1 / 1.57 = 100 / 157

Cut out the largest square from a round piece of iron with a diameter of 6cm. Calculate the area of the cut out part

The area of the circle is π (6 / 2) &# 178; = 28.26 (square centimeter)
The diagonal of the square is 6, and the area is 6 × 6 △ 2 = 18 (square centimeter)
Area of cut off part = area of circle - area of square = 28,26-18 = 10.26 (square centimeter)
A: the area of the cut part is 10.26 square centimeters

Master Zhang cut a round piece of iron with a diameter of 20 cm into the largest square. How many square centimeters is the square?

The diagonal length of the largest square is the length of the diameter. Let the side length of the square be a
Then: 2A ^ 2 = 20 ^ 2
So, the area of a square is a ^ 2 = 20 ^ 2 / 2 = 200 square centimeters

How much is the area subtracted by subtracting the largest square from a round sheet iron with a diameter of 6cm

Area = 6x6 / 2 = 18

A piece of iron with a length of 7 decimeters and a width of 5 decimeters can be cut into round pieces with a diameter of 2 decimeters at most

7÷2=3…… one
5÷2=2…… one
It can cut 2 × 2 = 4 pieces at most

How many biggest circles can be cut out on a rectangular paperboard 20 cm long and 2 cm wide? What is the area of each circle? What's the area of the rest?

The diameter of the largest circle cut is 2, and the largest circle can be cut out: 20 ／ 2 = 10 (pieces), 3.14 × (2 ／ 2) 2 = 3.14 (square centimeter), 20 × 2-3.14 × 10, = 40-31.4, = 8.6 (square centimeter). A: 10 largest circles can be cut out, the area of each circle is 3.14 square centimeter, and the area of the remaining part is 8.6 square centimeter

How many biggest circles can be cut out on a rectangular paperboard 20 cm long and 2 cm wide? What is the area of each circle? What's the area of the rest?

The diameter of the largest circle cut is 2, and the largest circle can be cut out: 20 ／ 2 = 10 (pieces), 3.14 × (2 ／ 2) 2 = 3.14 (square centimeter), 20 × 2-3.14 × 10, = 40-31.4, = 8.6 (square centimeter). A: 10 largest circles can be cut out, the area of each circle is 3.14 square centimeter, and the area of the remaining part is 8.6 square centimeter