Questões de EFAI Matemática

Juliana was doing paper folding and followed the instructions below.

Take a sheet of paper.

Fold the paper in half vertically.

Cut half a circle.

If Juliana unfolds the paper after the last instruction, which image will show the result created by these three steps?

Laura and Patrícia are friends. During a pair activity in a math class, Patrícia said she didn’t know what a cube was. Laura thought of a way to explain the geometric solid to her.

Laura must explain to her classmate that the cube is a geometric solid that has

Carlos went to have some ice cream with his mother and noticed that the container had a shape that he already knew:

Available at: https://www.shutterstock.com/pt/image-photo/empty-wafer-style-ice-cream-cone-1599884104. Accessed 16 Dec. 2022.

Which solid has the same shape as the ice cream container?

The math teacher wrote on the blackboard the names of four geometric solids below:

Available at: https://www.shutterstock.com/pt/image-vector/green-wooden-board-teaching-books-school-1929907079. Accessed 12 Dec. 2022.

Among the geometric shapes written by the teacher, choose the only one that has a round body.

In our daily lives, we use different packages, of all shapes and sizes. To pack different types of products, boxes of different formats are used.

Choose the alternative that shows a cylindrical package.

Look at a work of art that uses only geometric shapes and different colors:

Available at: https://www.shutterstock.com/pt/image-vector/seamless-abstract-geometric-colorful-vector-pattern-60925270. Accessed 15 Dec. 2022.

All the geometric shapes used in the work above are