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givi [52]
3 years ago
8

. What physical characteristic does a retinal scan biometric device measure?

Computers and Technology
1 answer:
elena-s [515]3 years ago
4 0

Answer: D)The pattern of blood vessels at the back of the eye.

Explanation: The retinal scan is the techniques which is used in the bio-metric mechanism.The scanning of the retina's blood vessel pattern is capture by the scanner is the unique technique which is used for bio-metric purpose.

Blood vessel pattern is capture because it is present in unique form for every person and will help in distinguishing a person from another person while scanning.

Other options are incorrect because light reflection or reaching near retina and light pattern are not the unique way for identification while scanning a person.Thus the correct option is option(D).

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schepotkina [342]

Answer:

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Area = 0.5 * b * h

To calculate the perimeter of the triangle, the measurement of the slant height has to be derived;

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For the volume of the cone,

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Base on the above illustrations, the program is as follows;

#include<iostream>

#include<cmath>

using namespace std;

void CalcArea(double b, double h)

{

//Calculate Area

double Area = 0.5 * b * h;

//Print Area

cout<<"Area = "<<Area<<endl;

}

void CalcPerimeter(double b, double h)

{

//Calculate Perimeter

double Perimeter = 2 * sqrt(pow(h,2)+pow((0.5 * b),2)) + b;

//Print Perimeter

cout<<"Perimeter = "<<Perimeter<<endl;

}

void CalcVolume(double b, double h)

{

//Calculate Volume

double Volume = (1.0/3.0) * (22.0/7.0) * pow((0.5 * b),2) * h;

//Print Volume

cout<<"Volume = "<<Volume<<endl;

}

int main()

{

double b, h;

//Prompt User for input

cout<<"Base: ";

cin>>b;

cout<<"Height: ";

cin>>h;

//Call CalcVolume function

CalcVolume(b,h);

//Call CalcArea function

CalcArea(b,h);

//Call CalcPerimeter function

CalcPerimeter(b,h);

 

return 0;

}

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Answer:

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Explanation:

Hope this helps :)

Have an amazing day <3

Pls mark brainliest :p

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