<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>
<span>Circumference of a circle = Diameter × pi
Circumference of a circle = 40 cm × 3.14
<u>Circumference of the wheel = 125.6 cm
</u>
1 Km = 1000m
</span>Circumference of the wheel × 1000m = The number of revolutions
125.6 × 1000m = 125600
<u><em>
</em></u>
The wheel would make <u>
125600 revolutions</u>
if the bike travels 1 km.
Answer:
I think it is a
Step-by-step explanation:
D. The number of items (items being numbers)
As we can observe,
Angle x and 40° forms a linear pair.
so,
x+40 = 180
x = 140°
Measure of Angle x will be 140°.
!! Hope It Helps !!