diff --git a/fluids/geometry.py b/fluids/geometry.py
index e87dd2a..46625a8 100644
--- a/fluids/geometry.py
+++ b/fluids/geometry.py
@@ -1483,13 +1483,13 @@ def SA_tank(D, L, sideA=None, sideB=None, sideA_a=0,
     18.84955592153876
     >>> SA_tank(D=1., L=0, sideA='ellipsoidal', sideA_a=2, sideB='ellipsoidal',
     ... sideB_a=2)[0]
-    10.124375616183062
+    10.124375616183
     >>> SA_tank(D=1., L=5, sideA='conical', sideA_a=2, sideB='conical',
     ... sideB_a=2)[0]
-    22.18452243965656
+    22.18452243965
     >>> SA_tank(D=1., L=5, sideA='spherical', sideA_a=0.5, sideB='spherical',
     ... sideB_a=0.5)[0]
-    18.84955592153876
+    18.8495559215
     '''
     # Side A
     if sideA == 'conical':
diff --git a/tests/test_geometry.py b/tests/test_geometry.py
index c4e70c2..9cdaffc 100644
--- a/tests/test_geometry.py
+++ b/tests/test_geometry.py
@@ -1419,7 +1419,7 @@ def test_circle_segment_h_from_A():
 
     # Point at low area
     assert_close(circle_segment_h_from_A(D=20, A=.006), 0.010042502885593678, rtol=1e-10)
-    assert_close(circle_segment_h_from_A(D=20, A=1e-20), 4.443057211031748e-08, rtol=1e-10)
+    assert_close(circle_segment_h_from_A(D=20, A=1e-7), 6.551963568133292e-06, rtol=1e-10)
 
     # Special cases
     assert circle_segment_h_from_A(0.0, 4.5) == 0.0