diff --git a/assets/js/footer-functions.js b/assets/js/footer-functions.js
index 42cc05b..4ee25ea 100644
--- a/assets/js/footer-functions.js
+++ b/assets/js/footer-functions.js
@@ -24,7 +24,7 @@ function getBoxTests() {
 function getBottomLeftTriangleTests() {
     testGetBottomLeftTriangle("*", 1);
     testGetBottomLeftTriangle("*\n**", 2);
-    testGetBottomLeftTriangle("*\n**\n**", 3);
+    testGetBottomLeftTriangle("*\n**\n***", 3);
 }
 
 function getUpperLeftTriangleTests() {
@@ -42,7 +42,7 @@ function getPyramidTests() {
 
 
 function getCheckerboardTests() {
-    testGetCheckerboard(" *\n* ", 2, 2);
-    testGetCheckerboard(" * \n* *\n * ", 3, 3);
+    testGetCheckerboard(" *\n* \n", 2, 2);
+    testGetCheckerboard(" * \n* *\n * \n", 3, 3);
     testGetCheckerboard(" * \n* *\n * \n* *\n", 3, 4);
 }
\ No newline at end of file
diff --git a/assets/js/shapes.js b/assets/js/shapes.js
index e4351ba..28ed985 100644
--- a/assets/js/shapes.js
+++ b/assets/js/shapes.js
@@ -1,31 +1,102 @@
 function getLine(length) {
     // TODO - write method definition here
+    var output = "";
+    for(var x = 0; x < length; x++) {
+        output += "*";
+    }
+    return output;
 }
 
 
 
 function getBox(width, height) {
     // TODO - write method definition here
+    var output = "";
+    for(var x = 0; height > x; x++) {
+        for(var y = 0; width > y; y++) {
+            output += "*";
+        }
+        output += "\n";
+    }
+    return output;
 }
 
 
 
 function getBottomLeftTriangle(length) {
     // TODO - write method definition here
+    var output = "";
+    var count = 0;
+    for(var x = 1; x <= length; x++) {
+        for(count = x; count > 0; count--) {
+            output += "*";
+        }
+        //add new line if not last line
+        if(x != length) {
+            output += "\n";
+        }
+    }
+    return output;
 }
 
 
 function getUpperLeftTriangle(length) {
     // TODO - write method definition here
+    var output = "";
+    var count = 0;
+    for(var x = length; x > 0; x--) {
+        for(count = x; count > 0; count--) {
+            output += "*";
+        }
+        //add new line if not last line
+        if(x != 1) {
+            output += "\n";
+        }
+    }
+    return output;
 }
 
 
 
 function getPyramid(length) {
     // TODO - write method definition here
+    var output = "";
+    for(var tier = 1; tier <= length; tier++) {
+        //leading spaces
+        for(var y = tier; y < length; y++) {
+            output += " ";
+        }
+        //asterisk
+        for(var z = 1; z <= 2*tier - 1; z++) {
+            output += "*";
+        }
+        //trailing spaces
+        for(var y = tier; y < length; y++) {
+            output += " ";
+        }
+        //add new line if not last line
+        if(tier < length) { output += "\n" }
+    }
+    return output;
 }
 
 
 function getCheckerboard(width, height) {
     // TODO - write method definition here
+    var output = "";
+    var count = 1;
+    for(var line = 1; line <= height; line++) {
+        for(var x = width; x > 0; x--) {
+            if(count % 2 == 0) {
+                output += "*"; 
+            }
+            else {
+                output += " "; 
+            }
+            count++; 
+        }
+        if(width % 2 == 0) { count++; } //needed to alternate pattern on even width
+        output += "\n";
+    }
+    return output;
 }