Broken line, polygon and triangle
Answers are for parents and teachers.
1
Links of a broken line are 1.2 dm, 8 cm, 1 dm 5 cm, 9 cm. Length in cm?
44
2
An isosceles triangle has perimeter 34 cm and base 12 cm. Find a leg (cm).
11
3
Triangle sides are x, x + 2, x + 4 cm and the perimeter is 21 cm. Find x.
5
4
State the number of vertices and sides of a pentagon.
5 vertices and 5 sides
5
When do three points not form a triangle?
When they lie on one line.