How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
In the diagram, O is the centre of the circle PQRS, ∠PQR = 72° and OR is parallel to PS. Find ∠ OPS.
18°
108°
54°
36°
Correct answer is D
Angle at the centre O is twice the angle at the circumference.
i.e O = 72° * 2 = 144°
∠OPS = 180 - 144 = 36°
225°
315°
045°
135°
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not an exterior angle of a regular polygon?
66°
72°
24°
15°
Correct answer is A
No explanation has been provided for this answer.
In the diagram, △XYZ is produced to T. if |XY| = |ZY| and ∠XYT = 40°, find ∠XZT
110°
130°
140°
180°
Correct answer is A
Isosceles Triangle. Two equal sides. Two equal angles ;
∠ X = ∠ Z
∠Y + ∠X + Z = 180 --> 40° + ∠X + ∠X = 180°
∠2X = 180° - 40° = 140°
∠X = 70°, i.e ∠X = 70 and ∠Z = 70°.
The exterior angle of triangle is the sum of two opposite internal angles
: ∠X + ∠Y = ∠XZT
=70° + 40° = 110°
The diagonal of a rhombus are 12cm and 5cm. calculate its perimeter
26cm
24cm
17cm
34cm
Correct answer is A
Perimeter of a Rhombus = 4L or 2√( d1\(^2\) + d2\(^2\))
P = 2√(12\(^2\) + 5\(^2\))
P = 2√(144 + 25)
P = 2√169 = 2 * 13
P = 26cm