A triangle has a base of cm, measured to the nearest centimetre, and a height of cm, measured to the nearest cm. Find the lower bound for the area of the triangle.
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Practise MYP Extended Mathematics questions on 1.3 Upper and Lower Bounds and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
A triangle has a base of cm, measured to the nearest centimetre, and a height of cm, measured to the nearest cm. Find the lower bound for the area of the triangle.
A physical frequency is defined as . If s correct to 2 significant figures, calculate the lower bound of the frequency .
True or False: A measurement is recorded as , and its true value lies in the continuous interval . If the original value was rounded up to the recorded value , then the true value must have been in the sub-interval .
Fill in the blank: On a number line representing the interval of a continuous measurement with lower bound and upper bound , the limits of accuracy are represented by a _____ point at and an _____ point at .
True or False: If a length is measured as m to the nearest metre, the value m is a possible value for the actual length, but m is not.
23.75 cm
25.0 cm
23.5125 cm
24.75 cm
24.69
25.00
24.39
25.32
True
False
True
False
open; solid
solid; solid
open; open
solid; open