Math Problem Statement
Di tepi jalan raya kota X terdapat rambu lalu lintas berbentuk lingkaran dengan jarijari berukuran 7 cm dan sudut pusatnya 90°. Maka berapa luas juringnya?
A. 36,5 cm
B. 37,5 cm
C. 38,5 cm
D. 39,5 cm
Solution
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Math Problem Analysis
Mathematical Concepts
Circle
Arc length
Central angle
Formulas
Area of a sector formula
Conversion of degrees to radians
Pi value
Theorems

Suitable Grade Level
High School