Can someone tell me what is wrong with my code? It won't compile because of the periods tasking for user input, and it's having trouble with the Math.pow operation...

import java.util.Scanner;

public class FirstAssignment {

public static void main(String[] args){

// declaring variables and formulas

Scanner sc = new Scanner (System.in);

double sideA;

double sideB;

double sideC;

double angleA;

double angleB;

double angleC;

double sinA;

double cosA;

double tanA;

//taking user input

System.out.println("What is the length of side a?");

sc.sideAdouble();

System.out.println("What is the length of side b?");

sc.sideBdouble();

// working out side c

sideC = (Math.pow(sideA,2)) = (Math.pow(sideB,2));

//angles of A, B, C

angleA = Math.asin(sideA / sideC);

angleB = (angleA - angleC);

angleC = 90.00;

//sine, cosine, and tangent of angle A

sinA = (sideA / sideC);

cosA = (sideB / sideC);

tanA = (sideA / sideB);

//output of the program

System.out.println("The Length of side 'a' is " + sideA);

System.out.println("The length of side 'b' is " + sideB);

System.out.println("The length of side 'c' is " + sideC);

System.out.println("Angle A is " + angleA);

System.out.println("Angle B is " + angleB);

System.out.println("Angle C is " + angleC);

System.out.println("The sine of angle A is " + sinA);

System.out.println("The cosine of angle A is "+ cosA);

System.out.println("The tangent of angle A is " + tanA);

}

}