Question

find the radius of a circular wheel if it's diameter is 300 cm.​

Answer 1

Answer:

r-150 cm

d Diameter 300 cm

this is the radius of circle

Answer 2

Given data: The diameter of a circular wheel is 300cm.

To Find: The radius of a circular wheel.

Solution:

• A straight line that passes through the center of a circle and lies on the endpoints of the circle is called diameter.
• The longest chord of the circle is also called as diameter.
• The formula for diameter $d=2r$.
• Therefore, the formula for radius, $r=\frac{d}{2}$
• To find the radius of the circular wheel, substitute d=300cm in the formula,
• $r=\frac{300}{2}$
• $r=150cm$
• Hence, the radius of the circular wheel r=150cm.