The Core Mathematics paper of the 2025 WASSCE will be written on Thursday, 11th September, 2025. There is a possibility of WAEC testing WASSCE on the circle theorem. Candidates should revise with these questions on the topic.
All final-year students should try and solve these likely circle theorem questions. Answers have been attached to each question to make it easy for candidates to understand.
2025 WASSCE Circle Theorem Questions And Answers
QUESTION ONE
(b) Give a reason for your answer
Answers
(a) 86°
(b). The angle at the center is double the angle of the circumference.
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QUESTION TWO
Below is a circle with centre .
is a diameter of the circle, and is a point on the circumference.
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Answers
is a diameter of the circle; we know that triangle is confined within the semi-circle.
So we can say that the angle in a semi-circle is a right angle to deduce that .
To find , we just need to subtract from 180°
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QUESTION THREE
Below is a circle with centre .
A, B, and are points on the circumference.
Angle is 126°, and angle is .
Find angle .
You must show your workings.
Answer
The angle at the centre is , so;
.
We now know two out of the four angles inside .
To find a third, simply observe that angles around a point sum to :
Since the angles in a quadrilateral sum to , we can find the angle we’re looking for.
We hope these 2025 WASSCE Circle Theorem Questions and Answers make the core mathematics revision easy.
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