Add new generator: volume of pyramid

mathgenerator/funcs/geometry/volume_pyramid.py

@@ -0,0 +1,22 @@
+from .__init__ import *
+
+
+def gen_func(maxLength=20, maxWidth=20, maxHeight=50, unit='m', format='string'):
+    l = random.randint(1, maxLength)
+    w = random.randint(1, maxWidth)
+    h = random.randint(1, maxHeight)
+
+    ans = (l*w*h)/3
+
+    if format == 'string':
+        problem = f"Volume of cone with base length = {l} {unit}, base width = {w} {unit} and height = {h} {unit} is"
+        solution = f"{ans} {unit}^3"
+        return problem, solution
+    elif format == 'latex':
+        return "Latex unavailable"
+    else:
+        return l, w, h, ans, unit
+
+
+volume_pyramid = Generator("Volume of pyramid", 112, gen_func,
+                           ["maxLength=20", "maxWidth=20", "maxHeight=50", "unit='m'"])