Since an isosceles triangle can be represented by two right triangles back to back, you can utilize the pythagorean theorum to solve this example. Specifically:
18cm/2 = 9cm = 1 leg of right triangle (A)
24cm = hypotenuse of right triangle (C)
A squared + B squared = C squared
Altitude = B = square root of (C squared - A squared) = approximately 19.875
The altitude line is perpendicular to the base and bisects the apex of the isosceles triangle.
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.
Find this using the Pythagorean theorem (a=(1/2 * 8) b=the altitude c = 6).
i can
Yes! An isosceles triangle has 2 equal sides and two base angles equal.
The altitude line is perpendicular to the base and bisects the apex of the isosceles triangle.
Two sides of an isosceles triangle are equal. The base is the other side.
bob
Both have equal sides and equal base angles An isosceles trapezoid is made from an isosceles triangle that's had its top cut off parallel to its base
-- An isosceles triangle has two equal sides. -- An isosceles triangle has two equal angles. -- An isosceles triangle has two equal interior-angle bisectors. -- The bisector of the vertex angle of an isosceles triangle is also the perpendicular bisector of the triangle's base.
It is an isosceles triangle
equal
Yes, provided that the base is not one of the 2 equal sides. And it's also the perpendicular bisector of the base.
No. It need not be the base angles that are equal, it can be one of the base angles and the top angle (if the triangle is tipped over). Also, the base angle are equal in an equilateral triangle - although an equilateral triangle is a special kind of isosceles triangle.
An isosceles triangle has 2 equal base angles and its height is perpendicular from its apex to the centre of its base
An isosceles triangle has 2 equal sides and 2 equal base angles
The unequal side of an isosceles triangle is called the base.