All Tasks
Angles of triangles
In this isosceles triangle, the angles at the base are twice the angle b at the apex.
Choose a suitable equation that you can use to calculate the angle b.
# Triangles
# Angles
Training
7
Perimeter kite
In a kite-rectangle, one side is three times as long as the other x. Cross all terms that can be used to determine the perimeter of the figure.
# Terms with variables
Modeling
7
Sequence of triangles 1
Determine the numbers of small trinagles for the given step.
# Quadratic functions
Modeling
7
Sequence of squares 1
Determine the numbers of small squares for the given step.
# Numerical expressions
Modeling
8
perimeter trapzoid
In a symmetrical trapezoid, the two parallel sides a and c together are twice as long as the sum of the other two sides. Cross a term that can be used to determine the perimeter of the figure.
# Terms with variables
Modeling
7
Example challenge task
There are some important conceptual differences between support and challenge tasks. Maybe you can guess what these are?
Below, take a chance at selecting all the correct answers.
# Numbers & operations
Learning
7