Find the value of missing angles in quadrilaterals

Find the value of missing angles in quadrilaterals

Lesson details

Key learning points

  1. In this lesson, we will represent the angles in a quadrilateral pictorially and algebraically before learning how to calculate missing angles.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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3 Questions

Q1.
What is the value of angle a?
124°
236°
Correct answer: 56°
Q2.
What is the value of angle a?
160°
Correct answer: 20°
200°
Q3.
What is the value of angle y?
145°
Correct answer: 35°
85°

5 Questions

Q1.
Estimate the size of the angle.
123°
21°
Correct answer: 48°
Q2.
Find the size of angle a.
Correct answer: 135°
315°
45°
Q3.
Find the size of angle c.
298°
Correct answer: 62°
72°
Q4.
Find the size of angle c.
115°
Correct answer: 65°
90°
Q5.
Find the size of angle w.
326°
Correct answer: 34°
44°

Lesson appears in

UnitMaths / Missing angles and lengths