We have seen how we can draw a series of right triangles as in the picture.
What are the lengths of the sides of the tenth triangle?
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We have seen how we can draw a series of right triangles as in the picture. How mulch more is the perimeter of the 10^th triangle than the perimeter of the ninth triangle? .

We have seen how we can draw a series of right triangles as in the picture. How do we write in algebra, the difference in perimeter of the nth triangle to that of the triangle just before it? .

In the picture, the perpendicular is drawn from the midpoint of the hypotenuse of a right triangle. to the base. Calculate the length of the third side of the large right triangle and the lengths of all three sides of the small right triangle.

The picture shows a square drawn sharing one cor¬ner with a right triangle and the other three corners on the sides of this triangle. Calculate the length of a side of the square. .

In the picture below, the top vertex of a triangle is joined to the midpoint of the opposite side and then the point dividing this line in the ratio 2:1 is joined to the other two vertices. Prove that the areas of all three triangles in the picture on the right are equal to a third of the area of the whole triangle

All black triangles in the picture are equilateral. What is the ratio of sides of the outer and inner squares? .

In the picture below, the lines parallel to each side of the blue triangle through the opposite vertex are drawn to make the big triangle. How many triangles in the picture have the same area as that of the blue triangle.

In the picture below, the lines parallel to each side of the blue triangle through the opposite vertex are drawn to make the big triangle. How many triangles in the picture have the same area as that of the blue triangle? How many of them have the same measures of the blue triangle?