BNU1501
Basic Numeracy
Department of Decision Sciences
Assignment 03 for Semester 01 (compulsory)
Unique Number 532525
Questions 1 and 2 are based on the following information:
Consider the following figure:
Question 1
The perimeter of the gray shaded figure is
, [1] 50 cm
[2] 32 cm
[3] 37 cm
[4] 31 cm
Answer:
The perimeter C of a figure is the distance around the edge or boundary of a figure (the length of the
boundary).
5𝑐𝑚 + (6,5𝑐𝑚 × 2) + (19𝑐𝑚 − 12𝑐𝑚) + (19𝑐𝑚 − 12𝑐𝑚)
5𝑐𝑚 + 13𝑐𝑚 + 7𝑐𝑚 + 7𝑐𝑚
32𝑐𝑚
Question 2
The combined area of the gray shaded figure and the figure shaded with black lines is
[1] 30 cm2
[2] 50 cm2
[3] 32 cm2
[4] 65 cm2
Answer:
Triangle:
1
𝐴 = 2 × 𝑏𝑎𝑠𝑒 × ℎ𝑒𝑖𝑔ℎ𝑡
1
2
× (5 × 6)
1
2
(30)
15𝑐𝑚2
Rectangle:
𝑙×𝑤
5×7
35𝑐𝑚2
Therefore:
(15 × 2) + 35
30 + 35
65cm2
Question 3
Round your answer to two decimal digits. Find the volume of a rectangular prism which is 60 cm
long, 35 cm wide and 10 cm high. The answer, converted to litres, is
Basic Numeracy
Department of Decision Sciences
Assignment 03 for Semester 01 (compulsory)
Unique Number 532525
Questions 1 and 2 are based on the following information:
Consider the following figure:
Question 1
The perimeter of the gray shaded figure is
, [1] 50 cm
[2] 32 cm
[3] 37 cm
[4] 31 cm
Answer:
The perimeter C of a figure is the distance around the edge or boundary of a figure (the length of the
boundary).
5𝑐𝑚 + (6,5𝑐𝑚 × 2) + (19𝑐𝑚 − 12𝑐𝑚) + (19𝑐𝑚 − 12𝑐𝑚)
5𝑐𝑚 + 13𝑐𝑚 + 7𝑐𝑚 + 7𝑐𝑚
32𝑐𝑚
Question 2
The combined area of the gray shaded figure and the figure shaded with black lines is
[1] 30 cm2
[2] 50 cm2
[3] 32 cm2
[4] 65 cm2
Answer:
Triangle:
1
𝐴 = 2 × 𝑏𝑎𝑠𝑒 × ℎ𝑒𝑖𝑔ℎ𝑡
1
2
× (5 × 6)
1
2
(30)
15𝑐𝑚2
Rectangle:
𝑙×𝑤
5×7
35𝑐𝑚2
Therefore:
(15 × 2) + 35
30 + 35
65cm2
Question 3
Round your answer to two decimal digits. Find the volume of a rectangular prism which is 60 cm
long, 35 cm wide and 10 cm high. The answer, converted to litres, is
