Question #dabc5

1 Answer

Aug 8, 2016

#=100#

Explanation:

Hence #base= BC =AC cos45=20 cos 45=20(0.707)=14.14#
And #height=AB=AC sin45=20(0.707)=14.14#
Therefore
Area#=1/2times basetimes height#
#=1/2times14.14times14.14#
#=100#

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Question #dabc5

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