EDEXCEL MATHS A LEVEL PURE MATHS 1 COMPETENCY REVIEW 2026 MOCK TEST COMPLETE KEY INSIGHTS

EDEXCEL MATHS A LEVEL PURE MATHS 1
COMPETENCY REVIEW 2026 MOCK TEST
COMPLETE KEY INSIGHTS

◉ Volume of a cone.
Answer: V=1/3πr²h


◉ Surface area of a cone.
Answer: SA=πrl+πr²
(l=slant height)


◉ Volume of a sphere.
Answer: V=4/3πr³


◉ Surface area of a sphere.
Answer: SA=4πr²


◉ Volume of a cyclinder.
Answer: V=πr²h


◉ Surface area of a cyclinder.

,Answer: SA = 2 π r^2 (circles) + 2 π r h (rectangle)


◉ Area of a trapezium.
Answer: 1/2(a+b)h


◉ Area of a right angle triangle.
Answer: A= 1/2 bh


◉ Area of any triangle.
Answer: 1/2absinC


◉ Area of a circle.
Answer: A=πr²


◉ Circumference of a circle.
Answer: C=2πr or C=πd


◉ 1 Radian.
Answer: 180/π


◉ 2π in degrees.
Answer: 360

, ◉ Arc Length.
Answer: r x θ - where r is radius and θ is the angle in radians


◉ Area of a Sector.
Answer: 1/2 x θ x r²


◉ Area of a Segment.
Answer: ½r²(θ - sinθ)


◉ when θ is small sinθ.
Answer: sinθ = θ


◉ when θ is small cosθ.
Answer: cosθ = 1 - θ²/2


◉ when θ is small tanθ.
Answer: tanθ = θ


◉ y = secx graph.
Answer: range y ≥ 1 or y ≤ -1