Worked Example 3: Kite Angles

Part of Properties of Quadrilaterals · Section 6 of 10

Study NotesUnit: Geometry & MeasuresGCSE

A kite has angles of 40°, 120°, and 120°. Find the fourth angle.

Step 1 Add known angles

40° + 120° + 120° = 280°

Step 2 Subtract from 360°

Fourth angle = 360° − 280° = 80°

(Note: The 120° angles are the equal pair opposite each other)

This study notes covers Worked Example 3: Kite Angles within Properties of Quadrilaterals for GCSE Mathematics. Revise Properties of Quadrilaterals in Geometry & Measures for GCSE Mathematics with 11 exam-style questions and 3 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 6 of 10 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Practice questions for Properties of Quadrilaterals

Which of the following is a property of a parallelogram?

A. All four sides are equal
B. All four angles are 90°
C. Opposite sides are equal and parallel
D. Diagonals are equal in length

1 markfoundation

State THREE properties of a rhombus, at least one of which relates to its diagonals.

2 marksfoundation

Quick recall flashcards

Parallelogram

Opposite sides parallel and equal

Rhombus

All sides equal, opposite angles equal

Worked Example 2: Parallelogram Angles

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