Lesson Worksheet: Equilateral Triangles Mathematics • 11th Grade
In this worksheet, we will practice identifying equilateral triangles by their equal side lengths or equal angle measures to find a missing side length, perimeter, or area.
Q3:
The perimeter of an equilateral triangle is equal to the perimeter of a rectangle with a length of 5 cm and a width of 4 cm. Find the length of one side of the triangle.
Q6:
The area of an equilateral triangle is cm2. Find the side length.
Q7:
The diagram shows an equilateral triangle. Find the length of its sides.
Q8:
What is the ratio of the length of a side of an equilateral triangle to its perimeter?
- A
- B
- C
- D
- E
Q9:
A triangle has three sides equal in length and a perimeter of 24 length units. Find the length of one of its sides.