Home » Classroom » WAEC Mathematics 2000 Question

The area of a circle is 38 5cm2 Find its diamet... - WAEC Mathematics 2000 Question

The area of a circle is 38.5cm2. Find its diameter [take (\pi = \frac{22}{7})]

A
22cm
B
14cm
C
7cm
D
6cm
Ask EduPadi AI...
Correct Option: C

(\pi r^2 = 38.5<br /> \frac{}{} = r^2 = 38.5<br /> r^2 = \frac{38.5 \times 7}{22}<br /> r = \sqrt{12.25} = 3.5<br /> diameter = 2r = 2 \times 3.5 = 7cm)

Please share this, thanks:

#WAEC #WAEC

Add your answer

Notice: Please post responsibly.

No responses