# Category: freehand geometry

## Mark’s Fractal Geometry Problem

We featured a math quizzer from De La Salle University in our previous post. Now let’s go to Mapua Institute of Technology to feature one of their quizzers named Mark Elis Espiridion. “I never...

## John’s Geometric Algebra

The fire is still burning in search for Math wizards. This time, John Mark Año Guimba, third place in the recently concluded 2014 Metrobank –MTAP – Dep –Ed Math Challenge decided to share a...

## Area of a Leaf

This post is to outline step by step solution on how to find the area of the leaf made by intersecting semicircles. This is a classical geometry problem. It might be easy for some...

## Freehand Geometry: (January 8 – January 15, 2014)

What Area? ABCD is a rectangle. X is on AB and Y is on BC. The area of triangle AXD is 5, the area of triangle BXY is 4 and the area of...

## Freehand Geometry: ( December 31 – January 6, 2014)

Geometry of leafs Given a square whose sides have length 4 cm, find the area of the region bounded by the four semicircles which are in the interior of the square and have the four sides...

## Freehand Geometry: ( December 21 – December 28, 2013)

Annoying Circle ABCD is a rectangle. P is inside a rectangle such that AP=3, BP=4, CP=5. What is the area of the circle inscribed in triangle APD if angle APD=9o degrees ? Submit Answer...

## Freehand Geometry: Problem of the Week (December 14 – December 21, 2013)

Triangles in a triangle Triangle ABC is a right triangle with right angle at B. The legs are of length 15 and 8. Point D is on the hypotenuse of the triangle such...

## Freehand Geometry: (December 7 – December 14, 2013)

Sum of Infinite Area A regular hexagon has a side 6 cm. A smaller hexagon was drawn by connecting the midpoints of the side of the larger hexagon. The process is repeated continuously....