Aplot of land is in the shape of a square. the shaded square inside is covered with gravel. the rest of the square plot is covered in grass. its area is 1400 square feet. how long are the sides of the square?

Sides of the bigger square are 40 feet long.

Step-by-step explanation:

If we go by the picture attached plot of land is in the square shape.The shaded part is covered with gravel.

Area of the shaded part = 200 square ft.

Side of the bigger square is x ft.

Area of the remaining part of the bigger square = 1400 square feet

So the equation will be

Area of the plot covered with grass = Area of bigger square - Area of the smaller square

1400 = x² - 200

x² = 1400 + 200 = 1600

x = √1600 = 40 ft.

there is nothing below so i cannot

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.