Question

Construct an equilateral triangle whose perimeter is 15cm

Answer 1

first, you need to know what is an equilateral triangle.

Its a triangle whose all sides are equal. therefore the perimeter divided by 3 gives each side a measure of 5cm.

NB I hope you know sketching and use of compass and ruler as well as the meaning of Arcs

DRAWING

1. using a ruler draw a line 5 cm, presumable line AB=5CM
2. using 5 cm measurement from a compass from A mark a point above the line
3. using 5 cm measurement from a compass from B mark a point(make an arc) above the line
4. The two marks will be interlaced.
5. draw a line from A and B to the point where they meet. Lets call the meeting point C