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