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The area of ANY triangle is base x height. The height must be measured perpendicular to the base. In the case of an isosceles triangle, if you know only the length of the sides, you can figure out the height by Pythagoras' Theorem.
an isosceles triangle
An isosceles triangle and an equilateral triangle
An isosceles triangle.
rectangle
The area of ANY triangle is base x height. The height must be measured perpendicular to the base. In the case of an isosceles triangle, if you know only the length of the sides, you can figure out the height by Pythagoras' Theorem.
an isosceles triangle
Isosceles triangle and an equilateral triangle
Figure B. equilateral triangle (small circle) inside of isosceles triangle (big cirlce)
Isosceles Triangle.
An isosceles triangle
The right triangle.
An isosceles triangle and an equilateral triangle
It is an isosceles triangle
An isosceles triangle.
An isosceles triangle.
There are infinitely many possible options. Any polygon can have two equal sides. For example, an isosceles triangle.