Height and Base of Triangles (31 Mar 26)
Instructions for constructing a triangle
Step 1: Select the Polygon tool
→ Click two points on one line, then one point on the other line, and click back to the first point to form a triangle.
Step 2: Select the Perpendicular Line tool
→ Click the top vertex of the triangle
→ Then click the base line (bottom side of the triangle)
Step 3: Select the Point tool
→ Click the intersection point where the perpendicular line meets the base
→ Make sure the point turns black (this means it is fixed correctly)
Step 4: Hide the extra line
→ Right-click the perpendicular line
→ Uncheck “Show Object”
Step 5: Select the Segment tool
→ Click the top vertex, then click the black point
→ This creates the height of the triangle
Step 6: Select the Distance or Length tool
→ Click the base to see its length
→ Click the height to see its length
Step 7: Select the Angle tool
→ Click the top vertex, the black point and one point of the base
→ Click the angle, then click “Angle Between:”, followed by “0° to 180°
The height of a triangle is always ____________ to the base of the triangle.
The height of a triangle can only be found within the triangle.
The base of a triangle includes the dotted line extension if its height falls outside of the triangle.