2017 Math Arena Video Competition

13 May

For video submission, choose one of the above for the video solution…. of course you can do all 3 (one video — one solution.)

Apart from solving it correctly, we are looking for a clearly communicated solution so that a viewer can understand the solution and learn from it.

You can get your teachers from Math Arena or your friends  or parents to help you out recording your solution.


  1. The figure below is made up of two adjacent squares and a shaded triangle. The smaller square has an area of 16 cm². The larger square has an area of 49 cm². What is the area of the shaded triangle?

rectangles.JPG

This question is suited for P5 students. 

100 STARS for BEST VIDEO solution from a P5 student. P4 student will be awarded 120 STARS. P5/P6 olympiad students, you will be awarded 50 STARS only. P6 students, you will be awarded 50 STARS only.


2. In the diagram, line segment PS has length 4. Points Q and R are on line segment PS. Four semi-circles are drawn on the same side of PS. The diameters of these semi-circles are PS, PQ, QR, and RS. The region inside the largest semi-circle and outside the three smaller semi-circles is shaded. What is the area of a square whose perimeter equals the perimeter of the shaded region?

Capture

P6 student should be able to answer this.

100 STARS for BEST VIDEO solution from a P6 student. P4, P5 student will be awarded 120 STARS. P5/P6 olympiad students, you will be awarded 50 STARS only.


3. Capture

Olympiad style question. Divisibility is a popular question. This question is rated intermediate to hard.

200 STARS for BEST VIDEO solution from any student.


Previously

https://matharena.wordpress.com/2014/07/23/math-arena-video-competition-submissions/

You can search more through Google, just type “matharena video”

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: