Hey All;

I hope you all are liking the **Math Brain Teasers**. If there is any feedback you have, I'm open to having them discussed and make changes accordingly to the competition that we are having here on the StemGeeks community daily.

I guess in between some of the Math puzzles got a bit complicated. So this time we have an easy and interesting puzzle to solve. Have a look at the following image and try finding out the missing number that should be replaced by the question mark.

**Hint:: ** I think that I shouldn't be giving any Hint for this Brain teaser as it's a simple one. And giving Hint here will make it super easy, which I don't want it to be.

##### Math Brain Teasers 7:: Solve The Triangle Puzzle - Solved with Explanation

Let's have a look at the answers and the math/logic involved in finding to:: Solve The Triangle Puzzle? for our SEVENTH **Math Brain Teasers 7 Question.**

### Logic to Solving:: The Triangle Puzzle?

Following is the logic used in solving **THe Triangle Math Puzzle**. You will need to use the equation::

#### D = 2xC-(A+B)

as your base to get to find the missing number in the Third Triangle.

where D is the central number that we are looking to find. And **A, B, C ** are the numbers around the triangle in an **anti-clockwise** direction starting from the top of the triangle. This was the HINT that I had already given with regards to **anti-clockwise** direction.

#### Steps to decode Tringle 1 Answer

A = 5 B = 2 C= 7

Equation:: D = 2xC-(A+B)

D = 2*7 - (5+2)

D = 14 - 7 = 7

#### Steps to decode Tringle 2 Answer

A = 3 B = 2 C= 8

Equation:: D = 2xC-(A+B)

D = 2*8 - (3+2)

D = 16 - (5)

D = 11

#### Steps to decode Tringle 3 Answer

A = 6 B = 4 C= 1

Equation:: D = 2xC-(A+B)

D = 2 * 1 - (6 + 4)

D = 2 - 10

D = -8

Hence the correct answer to our **Math Brain Teasers 7 :: Solve The Triangle Puzzle = **-8**

### STEM token GiveAway

I'll be again doing a giveaway of **STEM tokens** to the lucky random winner with the correct answer. We had 9 entries & out of which 1 entry was correct and that is of @pimpstudio-cash

Congratulations @pimpstudio-cash; Your WIN yourself 10 STEM tokens; worth 2.2+ HIVE. You should be having the rewards in your STEM Wallet Soon.

### Math Quote for the Day::

Here is the motivation to solve this Math Brain Teasers 8:: Find The Missing Number?

If you like my work, then please spread the Word.. that we do have the **Math Brain Teasers** competition here @StemGeeks platform. Reblog is much appreciated.

Best Regards

PS:: All the Maths Brain Teasers; are made by me using the Pro Canva License Version

Posted with STEMGeeks