Math Problem Statement

Sebuah lingkaran berpusat dititik O, besar sudut AOB adalah 160° dan luas juring AOB = 1.256 cm², maka panjang busur AB adalah

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Circle
Arc Length
Sector Area

Formulas

Luas juring (AOB) = (θ/360°) × π × r²
Panjang busur (AB) = (θ/360°) × 2πr

Theorems

Central Angle Theorem
Area of Sector

Suitable Grade Level

Grades 9-11