Question 1· Euclidean geometry· WAEC
WAEC Mathematics questions: Euclidean geometry
26 questions with answers and explanations. Tap an option to check yourself.
- Explanation and discussion
Question 2· Euclidean geometry· WAEC
The angles of a triangle are x°, 2x° and 3x°. The largest angle is
Explanation and discussionQuestion 3· Euclidean geometry· WAEC
Find the sum of the interior angles of a seven-sided polygon.
Explanation and discussionQuestion 4· Euclidean geometry· WAEC
A, B and C lie on a circle with centre O, and C is on the major arc AB. If angle AOB = 130°, find angle ACB.
Explanation and discussionQuestion 5· Euclidean geometry· WAEC
One angle of a cyclic quadrilateral is 72°. Find the angle opposite to it.
Explanation and discussionQuestion 6· Euclidean geometry· WAEC
A polygon has 8 sides. What is the total of its interior angles?
Explanation and discussionQuestion 7· Euclidean geometry· WAEC
The angle subtended by an arc at the centre of a circle is 110°. The angle it subtends at the circumference is
Explanation and discussionQuestion 8· Euclidean geometry· WAEC
Opposite angles of a cyclic quadrilateral are
Explanation and discussionQuestion 9· Euclidean geometry· WAEC
Find the size of each interior angle of a regular hexagon.
Explanation and discussionQuestion 10· Euclidean geometry· WAEC
Two angles of a triangle are 47° and 68°. Find the third angle.
Explanation and discussionQuestion 11· Euclidean geometry· WAEC
An arc of a circle subtends an angle of 110° at the centre. Find the angle it subtends at a point on the remaining part of the circumference.
Explanation and discussionQuestion 12· Euclidean geometry· WAEC
Angles x and 2x + 30° lie on a straight line. Find x.
Explanation and discussionQuestion 13· Euclidean geometry· WAEC
The interior angles of a polygon add up to 1,260°. The number of sides is
Explanation and discussionQuestion 14· Euclidean geometry· WAEC
Two angles of a triangle are 65° and 45°. Find the third angle.
Explanation and discussionQuestion 15· Euclidean geometry· WAEC
Find the sum of the interior angles of a pentagon.
Explanation and discussionQuestion 16· Euclidean geometry· WAEC
A transversal cuts two parallel lines. One of a pair of co-interior (allied) angles is 64°. Find the other.
Explanation and discussionQuestion 17· Euclidean geometry· WAEC
In a circle, angles subtended by the same arc at the circumference are
Explanation and discussionQuestion 18· Euclidean geometry· WAEC
An exterior angle of a regular polygon is 30°. The number of sides is
Explanation and discussionQuestion 19· Euclidean geometry· WAEC
When a transversal cuts two parallel lines, the alternate angles are
Explanation and discussionQuestion 20· Euclidean geometry· WAEC
Find each exterior angle of a regular hexagon.
Explanation and discussion
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