Answer:
The perimeter of an equilateral traingle with height 42cm is 126cm.
Explanation:
Given that the height or edge of an equilateral traingle is 42cm. With this information, we are asked to find the perimeter of an equilateral traingle.
The perimeter of equilateral traingle is defined as the three times of the length of edge. Mathematically;
→ Perimeter = 3a
By substituting the given values in the formula, we get the following results:
→ Perimeter = 3(42)
→ Perimeter = 126
Hence, the perimeter of an equilateral traingle with height 42cm is 126cm.
Additional information:
- A triangle has three sides or edges.
- A triangle has three angles.
- A triangle has three vertices or corners.
- The sum of all internal angles of a triangle is always equal to 180 degrees. This is known as the angle sum property of a triangle.
- The sum of the length of any two sides of a triangle is greater than the length of the third side.
- There are three types of triangle, Scalene Triangle, Isosceles Triangle, Equilateral Triangle.
- Area of triangle = 1/2 * b * h.
- Perimeter of triangle = sum of all sides.