Respuesta :

So you have a 10x10, a 7x10, and a 5x3 rectangles. You also have 2 3x3 triangles. Surface area is equal to the area of all figures combined. For the mall, it is just 1 of the triangles. For the park, it is the 5x3 rectangle and 3x3 triangle.
schurr

In this question, we're trying to find the area of the mall and park section.

Mall section:

We can see that the mall is shaped as a right triangle.

To find the area, we would use this equation:

A = h · b/2

The height and base would be 3, so plug in and solve:

A = 3 · 3/2

A= 9/2

A = 4.5

Answer:

The area of the mall section is 4.5 blocks²

Park section:

The park section is shaped differently, but lets cut it into different pieces.

We can make a rectangle with the length of 5 and the width of 3.

We would also have a triangle with the length and height of 3.

Solve the areas for those two and solve.

A = 3 · 3/2

A= 9/2

A = 4.5

A = 5 · 3

A = 15

15 + 4.5 = 19.5

Answer:

The area of the park section is 19.5 blocks²