�PNG


IHDR�:�ҩ�	pHYs��
�+baSE�"�G4IDATx��_�U�/�,.*�/�H���ȏ�EB�\̇2"D"$؈b��%�"DB��	Z�e��@"$D�M"���e��E����޽޹f��������9���s�ޙ�u��}6�� [�!G���^�
����)�{��&�G�ى�ִ�9jc���yP���
�n��4� �N����j�_����k�<<#'b]�~G�>o��M�K��\�'��)�r��8&�&2���+���
�	�OJ��2G��@�/G)��ǘ#{�d���
����%��)m 9'�F�qE:�9���H�
�+&^0��~�h����3��
���'�d�=�P.�!����^Y>+~��k	޶M�c߾��d-�#��N��
-=g�S�d7�ǯ�/E^Bsd�'�����몜��d��z
�fZLzk��֚����8�S{�O�c��r�m�~_4N�`@��g=��,��%�����̑�9m��:_̼�6�NZ�^�1��I6J�[��fT���ГV-��gǰ�*��9Z�Y˶7����f�x��ɑ�iՆ2�K����'��<' 7Fߖ�ޗbG|���K�@/Y����׀�1!�S�0n�3��ؼT�Q��dg�E˝/[e��sD"���>�:��<����"��<�a߯'���ё�s�)AL�7$�y�S�s���Yfs�gdnjn@Գԯe���d��xd��u�˅�x-S�9rtJ,%�|�Xe9�M˅W��ڝ`DW[�}�
����9�#��#}���Ӕ�9Z��z��P�����tY�m�T�%�kZEV�GW}c��Q����R�.��}c?�cgs4.��|�ܯ[
��%B��G�&�e����Q+��
h}�g�ovl�멊Oˤ�g)p�ۛM�o����)6�` T�cRU?V�e*�JǓ��x..��YLHf�G	c��5ru
bt=&>-�S�d;�&�z�5�Q)�%�
4���.@��G��~̦e*����Z=aڜL\'6�{��"W V��%�Q�e�i��Q�1x�
��5b	���CvK���u
bu=��c�T!Z&�c:�e���+�7�O%�
4H�/
y
P����j�b�L,39�X�RY��[��@���WU���XMV��� F�4,w�e55F,-��#�T�T���)�E�/rj�|Z�b��t
F-e[6�Ǻ�۲��>�P�6#�@�:F�X��X�3@�:���Ċ�H���5�Q#5�!�W�%]�F���Q�a�-�
�F�T�n,$� ��b�.�O��Q��G����9���گ�<��{Q*��g��|\�c���)�[%g�F^�VAB�&.���G;ַU#U|��t;���jE+6`�w����ԊJa�,/�j�&V�U���?�9F�5R\�^�J��b��e��c�S�����5�����=V�O#5,�P�G rk��|K��?�+�(�͗�M�-�P=V�F�[��
>����J��B�T�-����-�=V�F��K�uM#5 �b�<�ɀi��o��X!�{��lg�]�H-j����sU��o���`���z,P����%�x�HtEXtMathML<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mi>l</mi><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">=</mo><msqrt><msup><mi>r</mi><mn mathvariant="italic">2</mn></msup><mo mathvariant="italic">+</mo><msup><mi>h</mi><mn mathvariant="italic">2</mn></msup></msqrt><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">=</mo><mo mathvariant="italic">&#xA0;</mo><msqrt><msup><mn mathvariant="italic">2</mn><mn mathvariant="italic">2</mn></msup><mo mathvariant="italic">+</mo><msup><mfenced><mrow><mn mathvariant="italic">4</mn><mo mathvariant="italic">.</mo><mn mathvariant="italic">8</mn></mrow></mfenced><mn mathvariant="italic">2</mn></msup></msqrt><mspace linebreak="newline"/><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">=</mo><msqrt><mn mathvariant="italic">4</mn><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">+</mo><mo mathvariant="italic">&#xA0;</mo><mn mathvariant="italic">23</mn><mo mathvariant="italic">.</mo><mn mathvariant="italic">04</mn></msqrt><mspace linebreak="newline"/><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">=</mo><mo mathvariant="italic">&#xA0;</mo><msqrt><mn mathvariant="italic">27</mn><mo mathvariant="italic">.</mo><mn mathvariant="italic">04</mn></msqrt><mo mathvariant="italic">&#xA0;</mo><mo mathvariant="italic">=</mo><mo mathvariant="italic">&#xA0;</mo><mn mathvariant="italic">52</mn><mo mathvariant="italic">&#xA0;</mo><mi>c</mi><mi>m</mi></mstyle></math>��IEND�B`�