35.074 units2
If all three sides are 9 inches in length, then it is an EQUILATERAL Triangle. All the angles are 60 degrees.
An equilateral triangle with sides of 9 meters, silly!
Area of a triangle = 1/2*base*altitude in square units Area = 45 square feet
Use Pythagoras' theorem: 92-4.52 = 60.75 and the square root of this is the altitude which is 7.794 inches to 3 d.p.
The area of a triangle is one-half the product of the triangle's base and height. The height of an equilateral triangle is the distance from one vertex along the perpendicular bisector line of the opposite side. This line divides the equilateral triangle into two right triangles, each with a hypotenuse of 9c and a base of (9/2)c. From the Pythagorean theorem, the height must be the square root of {(9c)2 - [(9/2)c]}, and this height is the same as that of the equilateral triangle.
It will be 9 times as large. And that will be true for any plane shape, not just an equilateral triangle.
3.897 square inches.
Its area is 46.8 (46.76533) square inches.
If all three sides are 9 inches in length, then it is an EQUILATERAL Triangle. All the angles are 60 degrees.
An equilateral triangle with sides of 9 meters, silly!
Area of a triangle = 1/2*base*altitude in square units Area = 45 square feet
If: (-2, 9) and (-7, -3) is the same distance then the height of the triangle is 13 units and each length of the equilateral triangle is 15.011107 units. Area = 0.5*13*15.011107 = 97.572 square units to 3 decimal places
Use Pythagoras' theorem: 92-4.52 = 60.75 and the square root of this is the altitude which is 7.794 inches to 3 d.p.
The area of a triangle is one-half the product of the triangle's base and height. The height of an equilateral triangle is the distance from one vertex along the perpendicular bisector line of the opposite side. This line divides the equilateral triangle into two right triangles, each with a hypotenuse of 9c and a base of (9/2)c. From the Pythagorean theorem, the height must be the square root of {(9c)2 - [(9/2)c]}, and this height is the same as that of the equilateral triangle.
An equilateral triangle has three sides of equal length.
An equilateral triangle
6 squared = 3 squared + x squared if x is the height (altitude) of the triangle 36 = 9+x squared x squared =27 so x = 3 sqrt3 = 5.19615