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If you want to calculate the area, any of the three sides can be the base. From the base, you draw a perpendicular line to the third angle, to get the height. The result will be the same (within the limit of drawing accuracy, of course), whatever side you choose as the base.
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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.
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.
What is the area of a triangle with a base of 40cm and 25cm sides?
A triangle with side a: 40, side b: 25, and side c: 25cm has an area of 300cm2
Calculate the area of a triangle?
If it is a right angled triangle then it is 0.5*(base)*(height) of the triangle half the base times by the height imagine it as half the area of a rectangle of the two triangles * * * * * That is all very well if you know the base and the height. Sometimes you know only the three sides. Or only two sides and an angle, or two angle and a side. There are a whole host of formulae for such circumstances.
How do you find a triangle when you only know one side and one angle?
with a tryangle you have 3 sides. A base and a leg and a hypotnuse. if you have a base and an angle just use the trig function to find your hight.
How do you know what the base of a triangle is?
the base of a triange would be different depending per triangle. an equilateral can be any side, an isosceles would be the side that is different and a scalene would be the longest.
How can you find the height of a triangle if you only have the base?
You can't! If the base is the only side you know, you'll need two angles to define the triangle entirely
How do you know which measurements are the base and the height of a triangle?
It does not matter. Any side can be the base. Then, the height is the perpendicular distance between that side and the opposite vertex.
Can any side of a triangle be the base of that triangle?
You can pick any side to be the base. It doesn't really matter.
Is a base of a triangle a side?
Yes, a triangle has 3 sides, and the base is one of those.
How do you find the perimeter of a isoscles triangle all you know is the base and height?
-- Imagine what you have if you slice the triangle in half along the height ...-- You have a right triangle. One side of it is 1/2 of the base, and one side isthe height.-- The slanting side is the hypotenuse of the right triangle, and knowing whatyou know about right triangles, you can calculate its length.-- Once you do that, you have the lengths of all three sides of the original triangle,and you can calculate the perimeter.
Can the side opposite of the vertex of a triangle could be the base of a triangle?
Yes, though generally speaking the bottom, horizontal side (if any) of a triangle is called its base.
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.
What side that is the bottom of triangle?
Its base.
Which is the base of an isosceles triangle?
Two sides of an isosceles triangle are equal. The base is the other side.
How do you get the area of a triangle without a base?
it depends on the numbers you do get and what type of triangle it is. If somehow you can get it to be a right triangle and you have either the height or the hypotenuse, use the Pythagorean Theorem, A^2 +B^2=C^2... A and B being either the height or base and C being the hypotenuse. (side opposite the right angle is the hypotenuse)The base side of a triangle can be any side of the triangle - the height of the triangle is the perpendicular distance from this side to the opposite vertex.If you do not know the base length, then you must not know the length of any side of the triangle. You need to know one height and two other facts:If you know all three heights of the triangle, then the area can be worked out using:area = 1 ÷ (4 x √(h(h - 1/x)(h - 1/y)(h - 1/z)))wherex, y, and z are the three heights of the triangle; andh = 1/2 (1/x + 1/y + 1/z)If you know the one height of the triangle and the angles at the ends of the base of the triangle, the base length can be worked out by trigonometry to give the area as:area = 1/2(cot A + cot B)h2whereh is the height of the triangle; andA and B are the angles at the ends of the base.
How do you find the base of a triangle?
It is usually the lowest, horizontal side of the triangle.
