Waec Mathematics Past Questions and Answers

Question 491:

• WAEC 1997

The length of the two parallel sides of trapezium are 6cm and 10cm and the perpendicular distance between them is 5cm. Find the area of the trapezium

A. 21cm²
B. 4Ocm²
C. 8Ocm²
D. 150cm²
E. 300cm²

Question 492:

• WAEC 1997

Calculate the total surface area of a solid cone of slant height 15cm and base radius 8cm in terms of π

A. 64πcm²
B. 12Oπcm²
C. 184πcm²
D. 200πcm²
E. 32Oπcm²

Question 493:

• WAEC 1997

The cross-section of a prism is a right-angled triangle 3cm by 4cm by 5cm. The height of the prism is 8cm. Calculate its volume

A. 48cm³
B. 6Ocm³
C. 96cm³
D. 120cm³
E. 24Ocm³

Question 494:

• WAEC 1997

Find the radius of a circle in which an arc of length 44cm subtends angle 200° at the centre of the circle. [Take π = 22/7]

A. 3.9cm
B. 12.6cm
C. 25.2cm
D. 38.4cm
E. 124.5cm

Question 495:

• WAEC 1997

The diagram above is a triangle XYZ whose area is 23.5cm². XY =1Ocm and YZ = 8cm, calculate θ correct to the nearest degree.

A. 34^o
B. 35^o
C. 36^o
D. 37^o
E. 40^o