Math Problem Statement
Determina la longitud de cada uno de los arcos siguientes, que tienen radio r y ángulo central \alpha. Expresa tu respuesta redondeando a 2 cifras decimales.
a
r=5cm,α=70º;longituddearco≈
6.11
cm
b
r=4cm,α=45º;longituddearco≈
3.14
cm
c
r=10.5cm,α=130º;longituddearco≈ cm
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Arc Length
Radians
Angle Conversion
Formulas
Arc length formula: L = r * θ
Angle conversion: θ = α * π/180
Theorems
Proportionality of angles and arc lengths in circles
Suitable Grade Level
Grades 9-11
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