Subject: Mathematics
Book: Maths Mastery
A circle sector is the “slice” formed by two radii and their intercepted arc. Its area formula is (θ/360°) × πr² if θ is in degrees, or (θ/2π) × πr² if θ is in radians. For example, if you have a 60° sector in a circle of radius 5 cm, the area is (60°/360°) × π × 5² = (1/6) × 25π = 25π/6 cm². Sector calculations aid in figuring out slice sizes for pizza, measuring angles in mechanical parts, or analyzing partial circular designs. Mastering the sector area formula extends your ability to handle specialized circular geometry problems.
If x^2 - 5x + 6 = 0, what are the roots?
View QuestionIf sin(A) = 3/5 and cos(B) = 5/13, where A and B are acute angles, what is sin(A+B)?
View QuestionIf x² - 9x + 18 = 0, what are the roots of the equation?
View QuestionIf the radius of a circle is 7 cm, what is its circumference?
View QuestionWhat is the square root of 0.25?
View QuestionA square is inscribed in a circle with a radius of 5 cm. What is the area of the square?
View QuestionWhat is the cube root of 729?
View QuestionIf a:b = 2:3 and b:c = 4:5, what is a:c?
View QuestionIf sin(θ) = 0.6 and θ is acute, what is cos(θ)?
View QuestionWhat is the square root of 121?
View Question