import "std/os.para";

import "std/time.para";

func start() {

let mode = io.read("Select a mode\n1: Hypotenuse\n2: Leg\n>> ");

if (mode.tolower().replace(" ", "") == "hypotenuse") {

hypotenuse();

}

elif (mode.tolower().replace(" ", "") == "1") {

hypotenuse();

}

elif (mode.tolower().replace(" ", "") == "leg") {

leg();

}

elif (mode.tolower().replace(" ", "") == "2") {

leg();

}

else {

print("Invalid option!");

}

start();

}

func hypotenuse() {

// Find missing hypotenuse (a^2 + b^2 = c^2)

let a = io.read("What is side a?\n>> ").to_float();

let b = io.read("What is side b?\n>> ").to_float();

let c2 = (a * a) + (b * b);

let hypotenuse = math.sqrt(c2);

print("The hypotenuse is " + hypotenuse + ".");

}

func leg() {

// Find missing leg (c^2 - a^2 = b^2)

let hypotenuse = io.read("What is the hypotenuse?\n>> ").to_float();

let a = io.read("What is side a?\n>> ").to_float();

let b2 = (hypotenuse * hypotenuse) - (a * a);

let b = math.sqrt(b2);

print("The missing leg is " + b + ".");

}

os.clear();

start();