Question

Высота двери 2 м, ширина составляет одну четвёртую её высоты . Найти площадь и периметр.

Answer 1

2/4=0,5м - ширина
S=ab=0,5*2=1м2 - площадь
P=(a+b)2=(0,5+2)2=5м - периметр

Answer 2

2*1/4=2:4=1/2 (м) ширина
2*1/2=1 (м2) площадь
2(2+1/2)=2*2 1/2=2*5/2=5 (м) периметр

Answer 3

Problem Analysis

We are given that the height of a door is 2 meters and the width is one-fourth of its height. We need to find the area and perimeter of the door.

Calculation

Let's calculate the width of the door first. We are given that the width is one-fourth of the height, which means the width is 2/4 = 0.5 meters.

To find the area of the door, we multiply the width by the height: Area = width * height = 0.5 * 2 = 1 square meter.

To find the perimeter of the door, we add up all the sides: Perimeter = 2 * (width + height) = 2 * (0.5 + 2) = 2 * 2.5 = 5 meters.

Therefore, the area of the door is 1 square meter and the perimeter is 5 meters.

Conclusion

The area of the door is 1 square meter and the perimeter is 5 meters.