books the radius of the circumference
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# surrounding circle ray
# The circle around the triangle
# Semicircle circumference formula
# Calculating the circumference of a semicircle
# Surrounding circles
# What is the law of circumference of a circle?
# How to calculate the circumference of a circle
# The formula for calculating the circumference of a circle
# The law of circumference and area of a circle
# A look at the circumference and area of a circle
# The formula for area and circumference of a circle
# Examples of area and circumference of a circle
# What is the circumference of the Earth's equatorial circle?
# Circumference and area of a circle
# Circle circumference in shows and rhymes
# What is the formula for the radius of a circle
# Overview of the radius of a circle
# The surrounding environment
# The circumstances surrounding the
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Source: wikipedia.org
نصف قطر الدائرة المحيطة (Info)
في القرن الخامس عشر الميلادي، استنتج العالم الهندي ڤاتاسِّيري پاراميشڤارا صيغة إيجاد نِصفِ قُطرِ الدَّائرةِ المُحِيطَةِ بدلالةِ أطوالِ الأضلاعِ ونصف المحيط:
