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What is the perimeter of an isosceles triangle with a base of 29 and a side of 81?
Wiki User
∙ 11y ago
Perimeter = 81+81+29 = 191 units of measurement
Wiki User
∙ 11y ago
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You know base and angles how do I find height of isosceles triangle?
Use the sine rule to work out one of the sides. (a/sina = b/sinb = c/sinc) Then as it is an isosceles triangle the perpendicular dropped from the apex will (a) bisect the base and (b) form a right angle with the base. Now you know one side and the hypotenuse of a right-angled triangle and you use Pythagoras (a2 + b2 = c2) to solve the 'other' side of that, which is the height of the isosceles triangle.
If the base of an isosceles triangle is 74 what is the measure of the vertex angle?
You can't calculate any angle if all you know is one side of the triangle.
Can an altitude be a perpendicular bisector?
Yes - the altitude of an equilateral triangle is perpendicular to the side chosen as the base and bisects that side and the opposite angle. Also, the altitude of an isosceles triangle when measured from the third side (the side that is not equal to the other two sides) is a perpendicular bisector of the base and also bisects the opposite angle.
What is the sum of side lengths of a triangle?
That number is called the "perimeter" of the triangle.
How does doubling the side lengths of a triangle affect its perimeter?
If the length of each side is doubled, then the perimeter is also doubled.
How do you find the perimeter of an isosceles triangle when you only have one side and the base?
If you mean "isosceles" triangle, the perimeter is the sum of twice the known side plus the base.
Formula of perimeter of isosceles triangle?
Lengths of: equal side+equal side+base = perimeter
What is the perimeter of an isosceles triangle with a base of 45 and a side of 58?
Perimeter = 45+58+58 = 161 units of measurement
Which is the base of an isosceles triangle?
Two sides of an isosceles triangle are equal. The base is the other side.
The side of an isosceles triangle that is not equal to the other two is?
The unequal side of an isosceles triangle is called the base.
What is the base of isosceles triangle?
the isosceles triangle ahs two equal sides and one different side. The base is the one with the different side.
The isosceles triangle had a side of 4.6 inches and a base of 3.9 inches. What was the distance around it?
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 with congruent sides of 16.2 cm and a third side half that length what's the perimeter?
Perimeter of the isosceles triangle: 16.2+16.2+8.1 = 40.5 cm
What is the perimeter to a triangle that has two sides that are 14ft and one side with 9ft?
The isosceles triangle has a perimeter of: 14+14+9 = 37 feet
The side of an isosceles triangle that is not a leg is called?
The base.
How do you find perimeter of isosceles triangle with one side?
You cannot since there is insufficient information.
What is the side opposite of the vertex angle of an isosceles triangle?
The base
