What is the length of side c? с 4 3 O A 5 units B. 7 units O C. 16 units O D. 15 units​

Step-by-step explanation:

Pythagorean theorem works for right triangles  a²+b² = c²

The Pythagorean theorem might be easier to understand written like this

(side 1)² + (side 2)² = (hypotenuse)²           hypotenuse is c in this diagram    

it can also be written like this just flipping both sides (they are still equal)

(hypotenuse)² = (side 1)² + (side 2)²

using algebra to solve for the hypotenuse

hypotenuse  =  √[ (side 1)² + (side 2)²]         remeber    hypotenuse = c

c  =  √[ (side 1)² + (side 2)²]                     rewritten with c instead of hypotenuse

    = √[      4²      +     3²   ]

    = √(      16      +     9    ]

    = √(25)

What number is the square root of 25?  

Or what number times itself equals 25?

Your chooses were  A B C or D

A  5x5 = ?

B  7x7 =  ?

C  16x16 = ?

D   15x15 = ?

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step-by-step explanation: