In square ABCD, what is the area of triangle BEF?
~9.80
Solution is here
The square ABCD has a side length of 1, and AEF is an equilateral triangle. What is the area of AEF?
In rectangle ABCD, point G is the midpoint of AD, and points E and F trisect BC. The diagonal BD intersects GE at H and GF at I. If the area of ABCD is 10, what is the area of triangle HIG?
Square ABCD is inscribed in a quarter circle O such that B and C are on the arc of the quarter circle. If the quarter circle has a radius equal to 1, what is the area of the square?
The area of rectangle ABCD is 48 cm2. What is the area of the shaded triangle?
Following figures shows a unit square ABCD. If the area of the octagon (in blue) can be expressed as 1/a find a?
