A) b)
The lengths of the rectangle have been measured to the
nearest tenth of a centimetre.
Work out the following, writing down all the figures on your calculator display:
a) The upper bound for the area of the rectangle.
b) The lower bound for the perimetior of the rectangle.
87.3 cm
51.8 cm

step-by-step explanation:

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it should be a.

hope it

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm

a)  

step-by-step explanation:

we have to remove the roots and then apply exponential formula.

given,

we know,

so, we get

hence the answer is-