Geometry
Problems related to shapes, spaces, measurements, etc.
Problems in this category
We are given a quadrilateral ABCD with the following angle measures: $\angle ABC = 14^{\circ}$, $\an...
QuadrilateralAnglesAngle SumReflex Angle
2025/6/8
The problem asks us to find the size of angle $d$ in the given diagram. The diagram shows a quadrila...
QuadrilateralsAnglesExterior AnglesInterior Angles
2025/6/8
The problem is to find the size of angle DAB in a quadrilateral ABCD. We are given that angle D = $8...
QuadrilateralAnglesGeometric Proof
2025/6/8
The problem asks to find the size of angle $a$ in the given quadrilateral. The other angles in the q...
QuadrilateralsAnglesPolygon Interior Angles
2025/6/8
We are given a triangle $ABD$ with a smaller triangle $DEC$ inside. Triangle $DEC$ is equilateral. A...
TrianglesAnglesEquilateral TriangleAngle Calculation
2025/6/8
We are given a triangle $ABC$ with a smaller equilateral triangle $DEC$ inside it. The angle $BAC$ i...
TrianglesAnglesGeometric ProofsEquilateral Triangle
2025/6/8
The problem states that triangle $DEC$ is an equilateral triangle and angle $BAC$ is $50$ degrees. T...
TrianglesAnglesEquilateral TriangleAngle Sum PropertySupplementary Angles
2025/6/8
The problem describes a triangle ABC with a smaller equilateral triangle DEC inside it. We are given...
TrianglesAnglesGeometric Proofs
2025/6/8
The bunting flags are all isosceles triangles. We are given an isosceles triangle $PQR$ with angle $...
TrianglesIsosceles TriangleAngle CalculationGeometry
2025/6/8
The shaded triangle $DEC$ is an equilateral triangle. The angle $BAC$ is $50^{\circ}$. We want to fi...
TriangleAngleEquilateral TriangleAngle Sum of a Triangle
2025/6/8