- Step 1: Draw a straight line and mark its left endpoint as A.
- Step 2: Set the compass to a width of 4 cm.
- Step 3: Place the pointer head of the compass at A and cut an arc on the line.
- Step 4: Mark the point as B where the arc crosses the line.
What is the SAS rule for triangle proof?
If the two sides on one triangle are congruent to the corresponding two sides of the other triangle and the included angles are congruent in both triangles, then the triangles are congruent by SAS.
How do you construct an altitude?
So, in order to construct an altitude, first swing an arc from the vertex that is large enough to intersect the opposite side twice. Then, from each point at which the arc intersects that side of the triangle, making sure that the arcs at each of these points of intersection are the same size.
What is a SAS triangle?
The SAS theorem states that two triangles are equal if two sides and the angle between those two sides are equal.
What is construction of triangle?
How to construct a triangle with given three sides? Draw a line segment AB, of length equal to the longest side of the triangle. Now using a compass and ruler take the measure of the second side and draw an arc. Again take the measure of the third side and cut the previous arc at a point C.