In the figure above, if the area of square ABCD is 64. What is the area equilateral triangle BEC?

In the figure above, what is the area of quadrilateral ABCD?

In the figure, the area of rectangle ABCD is 45. what is the area of the square EFGH?

In the figure above, what is the area of triangle YAZ?

The side of an equilateral triangle is equal to the diagonal of the square. If the side of the square is 12 cm, then what is the area of the equilateral triangle?

In the figure the area of triangle APB is 25 square centimetres. What is the area of triangle ABC ? What is the area of rectangle ABCD?

triangleABC is an equilateral triangle angle BEC

Each of the small squares in the figure above has an area of 4. If the shortest , what is the area of the shaded triangle?