Right angled shapes

This task is about right angles in shapes.

Question

shapes-for-right-angled-shapes.png
a)  Which of these shapes have one or more right angles?
    • 1 and 2

    • 2 and 3

    • 2 and 4

    • 1 and 3

    • 1 and 4

Question

shapes-2-for-right-angled-shapes.png
b)  Which of these shapes have one or more right angles?
    • 1 and 2

    • 2 and 3

    • 3 and 4

    • 2 and 4

    • 2, 3, and 4