如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc2 求证ef等于be加cf

如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc2 求证ef等于be加cf
如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2
如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.
1  求证fd平分角efc
2  求证ef等于be加cf

如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc2 求证ef等于be加cf
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