20.84m
136.57 meters (a little over 448 feet) from the floor of the basilica to the top of the external cross.Find out more about St. Peter's Basilica at http://vaticanart.net/st-peters-basilica-architecture
st pauls cathedral in London is 111 meters tall, the 5th tallest church in the world
The inner ring is 30 m. For the outer ring, there is no fixed dimensions, usually between 137 meters and 150 meters.
271 meters tall
I guess you mean volcano. That is the Cuexcomate, standing 13 meters (43 feet) above the ground, with a diameter of 23 meters (75 feet).
The circumference of a circle with a diameter of 13.4 meters is: 42.1 meters (diameter x Pi = circumference).
Diameter being 22 meters, the area is 380.12 meters
If the circumference of a circle is 62.8 meters the diameter is: 20 meters.
The radius of a circle is 1/2 of its diameter. If the diameter is 15 meters, then the radius is 7.5 meters.
The Sun's diameter is approximately 1,391,000,000 meters in length, which is over 100 times the approximate diameter of the Earth (12,756,200 meters).
diameter = 220/pi meters
A circle 3.83 meters in diameter has an area of 11.5 square meters.