If you mean "isosceles" triangle, the perimeter is the sum of twice the known side plus the base.
An isosceles triangle is a triangle with two equal sides. To find the perimeter of the triangle, you simply need to add together the lengths of the base and the two sides. So: 3.9 + 4.6 +4.6 = 13.1 inches.
By using Pythagoras' theorem.
The perimeter of a triangle is the distance around it. Add the lengths of the three sides to find the perimeter.
Area:A=1/2bhA=Area b=Base h=HeightPerimeter:P=a+b+cP=Perimeter a,b,c=side lengths of the triangle
4 inches x 3 sides = 12 inches for the perimeter.
Assuming that neither of the sides of equal length is the base, Perimeter = Base + 2*Slanted sides.
That's not enough information to solve the problem.
An isosceles triangle is a triangle with two equal sides. To find the perimeter of the triangle, you simply need to add together the lengths of the base and the two sides. So: 3.9 + 4.6 +4.6 = 13.1 inches.
An isosceles triangle has 2 equal base angles and its height is perpendicular from its apex to the centre of its base
You cannot since there is insufficient information.
To find the circumradius of an isosceles triangle, the formula is:1/8[(a^2/h)+4h]in which h is the height of the triangle and a is the base of the triangle.
The answer depends on what information you have but, basically, you need to add together the lengths of the three sides of the triangle.
You can't. It is impossible.
The perimeter of a triangle is the sum of lengths of each side. So the perimeter would be 13 cm + 13 cm +10 cm = 36 cm
Only a right triangle has a hypotenuse. An isosceles triangle can be a right triangle but it doesn't have to be. If it's not, then it doesn't have a hypotenuse.
To have an altitude of 8 cm it could have a base of 12 cm and two equal sides of 10 cm which would satisfy Pythagoras' theorem because an isosceles triangle is in fact two right angle triangles joined together. Area of a triangle = 1/2*base*height Area = 1/2*12*8 = 48 square cm
To find the equal angels, base angles, of an isosceles triangle and you know the vertex angle, 180-vertex angle and then divide by two.