Topic Details (Notes format)

How to Convert Parametric Equations to Cartesian Form

Subject: Mathematics

Book: Maths Mastery

To convert parametric x=f(t), y=g(t) into Cartesian form y=F(x), eliminate the parameter t. For example, if x=2 cos(t) and y=3 sin(t), solve cos(t)=x/2, sin(t)=y/3, then sin²(t)+cos²(t)=1→ (x/2)²+(y/3)²=1. This is an ellipse in Cartesian form. Conversions matter for analyzing geometry or simplifying integrals in calculus. Recognizing how parametric forms unify with standard shapes fosters deeper insight into motion, design arcs, or advanced transformations. Mastery cements flexible modeling from parametric constraints to direct functional relationships.

Practice Questions

If a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?

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If a:b = 7:9 and b:c = 5:6, what is a:c?

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If the sum of the angles of a polygon is 1080°, how many sides does the polygon have?

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What is the square root of 121?

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The LCM of 12 and 15 is:

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The sum of the squares of two consecutive integers is 145. What are the integers?

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If sin(A) = 3/5 and cos(B) = 5/13, where A and B are acute angles, what is sin(A+B)?

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The angles of a quadrilateral are in the ratio 3:4:5:6. What is the largest angle?

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If the perimeter of a square is 40 cm, what is the area of the square?

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What is the area of an equilateral triangle with side length 10 cm?

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