Form 3 MathematicsIn this question Mathematical Tables should not be usedThe base and perpendicular height of a triangle measured to the nearest centimeter are 6 cm and 4 cm respectively. Find (a) The absolute error in calculating the area of the triangle (2marks) (b) The percentage error in the area, giving the answer to 1 decimal place (2mks) Form 3 Mathematics
A tailor intended to subdivide a piece of cloth into 7 equal parts. She approximated 7 m to 0.14 m. Calculate the percentage error in the approximation.
Form 3 Mathematics
By correcting each number to one significant figure, approximate the value of 788 x 0.0006.hence calculate the percentage error arising from this approximation
Form 3 Mathematics
The length and width of a rectangular piece of paper were measured as 60 cm and 12 cm respectively. Determine the relative error in the calculation of its area.
Form 3 Mathematics
The lengths of two similar iron bars were given as 12.5m and 9.23m. Calculate the maximum possible difference in length between the two bars.
Form 3 Mathematics
The base and height of a right angled triangle were measured as 6.4cm and 3.5 cm respectively. Calculate the maximum absolute error in the area of the triangle.
Form 4 Mathematics
The table below shows the values of x and corresponding values of y for a given curve.
a) Use the trapezium rule with seven ordinates and the values in the table only to estimate the area enclosed by the curve, x – axis and the line x = ^{П}/_{2} to four decimal places. (Take П = 3.142) b) The exact value of the area enclosed by the curve is known to be 0.8940.Find the percentage error made when the trapezium rule is used. Give the answer correct to two decimal places. Form 3 Mathematics
The radius of a spherical ball is measured as 7 cm, correct to the nearest centimeter. Determine, to 2 decimal places, the percentage error in calculating
the surface area of the ball. Form 3 Mathematics
The sides of a triangle were measured and recorded as 8 cm, 10 cm and 15 cm. Calculate the percentage error in perimeter, correct to 2 decimal places.
Form 3 Mathematics
A square room is covered by a number of whole rectangular slabs of sides 60cm by 42 cm. Calculate the least possible area of the room in square rnetres.
Form 3 Mathematics
The length and width of a rectangle measured to the nearest millimeter are 7.5 cm and 5.2 cm respectively.
Find, to four significant figures, the percentage error in the area of the rectangle. Form 3 Mathematics
The top of a table is a regular hexagon. Each side of the hexagon measures 50.0 cm. Find the maximum percentage error in calculating the perimeter of the top of the table.
Form 3 Mathematics
A rectangular block has a square base whose side is exactly 8 cm. Its height measured to the nearest millimeter is 3.1 cm
Find in cubic centimeters, the greatest possible error in calculating its volume. Form 3 Mathematics
By correcting each number to one significant figure, approximate the value of 788 x 0.006. Hence calculate the percentage error arising from this approximation.
Form 3 Mathematics  Topical Questions and Answers
The length and breath of a rectangular paper were measured to be the nearest centimetre and found to be 18 cm and 12 cm respectively.
Find the percentage error in its perimeter. 
TOPICS
Categories
All
ARCHIVES
AUTHOR
AuthorMaurice A Nyamoti is a Mathematics/ Computer Teacher and has passion to assist students improve grades RSS_FEED
PDF Docs
