A park is in the shape of a rectangle 2 miles long and 1.5 miles wide. How much shorter is your walk if you walk diagonally across the park rather than along two sides of it.

Respuesta :

Answer:

Length short if I walk diagonally across the park rather than along two sides of it = 1 mile

Step-by-step explanation:

Given:

Shape of park is a rectangle

Length of park =2 miles

Width of park = 1.5 miles

Walking path is diagonally across the park.

So, we need to find length of diagonal of the park.

The diagonal of a rectangle cuts the rectangle into two right triangles as all angles of a rectangle is at right angles. So, we can apply Pythagorean theorem to find the diagonal of the rectangle.

Applying Pythagorean theorem [ [tex]c^2=a^2+b^2[/tex] ]

For the rectangle,

[tex]d^2=l^2+w^2[/tex]

where [tex]d[/tex] represents length of diagonal

[tex]l[/tex] represents length of park

[tex]w[/tex] represents width of park

Substituting values.

[tex]d^2=(2)^2+(1.5)^2[/tex]

[tex]d^2=4+2.25[/tex]

[tex]d^2=6.25[/tex]

Taking square root both sides to find [tex]d[/tex].

[tex]\sqrt{d^2}=\sqrt{6.25}[/tex]

[tex]d=2.5[/tex] miles.

So, length of my walk = 2.5 miles

Length along two sides of the park = [tex]2+1.5=3.5[/tex] miles

Length short if I walk diagonally across the park rather than along two sides of it = [tex]3.5-2.5 =1[/tex] mile (Answer)