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Final: Enough to Finish?

Part of the Polygons & Quadrilaterals section of Coddy's Geometry journey. Lesson 58 of 61.

ABCD is a parallelogram and the diagonal BD is drawn. ∠DAB = 70° and ∠ADB = 45°. First decide whether the figure fixes ∠BDC. If it does, find it.

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Challenge

Does the figure fix ∠BDC? Answer, and if it does, find it with the rules. Then press Check.

Try it yourself

Is there enough information?

Is there enough information?

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This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Polygons & Quadrilaterals

1Polygons

Polygons and DiagonalsAngles of a QuadrilateralAngles in Any PolygonPolygon Angles with xHow Many Sides?Recap: Polygon Angles

4Parallelograms

ParallelogramsNeighbouring AnglesOpposite AnglesParallelograms with xA Diagonal InsideRecap: Parallelograms

7On Squared Paper

Make a ParallelogramDraw a Tilted RectangleDraw a RhombusDraw a Trapezoid and KiteRecap: Squared Paper

10Composite Shapes

Shapes Made of PartsRectangle and TriangleArea by SubtractingEnough to Find It?Recap: Composite Shapes

2Regular Polygons

Regular PolygonsFrom an Angle to the SidesInside a Regular PolygonRecap: Regular Polygons

5Rectangles, Rhombi, Squares

RectanglesThe Diagonal of a RectangleRhombus AnglesSquaresRecap: Special Parallelograms

8Area of Parallelograms

Area of a RectangleA Side from the AreaSlide the TopArea of a ParallelogramRecap: Parallelogram Area

11Polygon Chases

Parallel Sides in a PentagonMarks, Not LooksPentagon with xRegular Shapes TogetherRecap: Polygon Chases

3Exterior Angles

Exterior AnglesExterior Angles Make 360°Regular Exterior AnglesSides from the ExteriorRecap: Exterior Angles

6Trapezoids and Kites

TrapezoidsIsosceles TrapezoidsTrapezoids with xKitesRecap: Trapezoids and Kites

9Area of Trapezoids

Area of a TrapezoidA Missing BaseFind the Height FirstTrapezoids by AreaRecap: Trapezoid Area

12Final Challenges

Final: The Garden BedFinal: Enough to Finish?Final: The RampFinal: The Gable WallFinal: The Star Point