P6 Math: Circle with a Square (2 identical isosceles triangles)

This is a circle question that also requires knowledge of triangles and squares.

The radius is not given but the area of the square or triangle is given.

Students will find it difficult to find the area of the circle due to the missing radius.

Such questions appear in Paper 2 of Prelim papers.

Calculator usage is allowed.

An oil drum cylinder has a circular base
but is a rectangle when viewed from the side

The question below will randomize with different numbers every hour. 

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P6 Math: Circles (Revolutions) and Distance between 2 Walls

The "Circle" question type below deals with Circumference ( revolutions ) and requires students to understand the relationship between the distance between the 2 walls and the number of revolutions that the "round object" has to make.

Such questions are common in Paper 2 of P6 exams.

Calculator usage is accepted.

The question below will randomize with different numbers every hour. 

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P6 Math: Circles with Rectangles and Diagonals

A rectangle is drawn inside a circle with one of its corner at the center of the circle.

The diagonal length of the rectangle between 2 corners is provided together with its length and breadth.

Students are expected to find the area of the circle using the information from the rectangle(within the circle).

Such questions often appear in P6 Paper 2 during the Prelims.
Calculator usage is allowed.

The semi-circle below has a rectangle inside of it.
The rectangle was drawn from the center of the circle.

What is the area of this semi-circle?

Take π to be 3.14

If the above question is easy, try to do the more challenging question below

The question below will randomize with different numbers every hour. 

Copy below question down before making attempt.

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