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No. A trapezoid has two parallel sides. This is not possible in a concave quadrilateral.
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Is a jeweller's mirror concave or convex?
concave
Is a trapezoid always an isosceles trapezoid?
No, not every trapezoid is an isosceles trapezoid.
The median of a trapezoid bisects the bases of the trapezoid?
The altitude of a trapezoid bisects the bases of the trapezoid.
What are all the names for the trapezoid?
All the names to classify a trapezoid are a trapezoid and a quadrilateral.
Is concave a parallelogram?
Concave is a property of [irregular] polygons. A parallelogram cannot be concave.
Is a trapezoid concave or convex?
A trapezoid is convex.
Is a trapezoid a concave shape?
No
What do a trapezoid and a triangle make?
It depends entirely on their relative shapes and sizes. They could make a triangle, a parallelogram, a square, or a pentagon or even a concave heptagon.
What can a triangle and a trapezoid be combined to make?
A big triangle if you put the triangle on the trapezoid's short parallel side, or a parallelogram if you put it on one of the trapezoid's ends. In both cases the triangle must be exactly the right shape and size or you will only have an irregular quadrilateral, pentagon, or hexagon. (Placing an appropriately-sized triangle on the long parallel side will also yield a pentagon - likely irregular.) Additionally, if a vertex of the triangle touches the trapezoid it can also make an irregular concave heptagon!
Is a jeweller's mirror concave or convex?
concave
What are the four four-sided objects in geometry?
4-sided polygons include the square, rectangle, and rhombus (all parallelograms), and the trapezoid.*A fifth type is a concave or convex quadrilateral with no equal or parallel sides.
What is the opposite of Convex?
The opposite of convex is concave. Concave shapes have an inward curve, while convex shapes have an outward curve.
Is a trapezoid always an isosceles trapezoid?
No, not every trapezoid is an isosceles trapezoid.
The median of a trapezoid bisects the bases of the trapezoid?
The altitude of a trapezoid bisects the bases of the trapezoid.
What are all the names for the trapezoid?
All the names to classify a trapezoid are a trapezoid and a quadrilateral.
Is concave a parallelogram?
Concave is a property of [irregular] polygons. A parallelogram cannot be concave.
What type of mirror is used by dentist- plano concave or concave?
plano concave
