関連ワード:  prove that base angles of an isosceles triangle are equal    proof that base angles of isosceles triangle are equal    prove that bisectors of base angles of an isosceles triangle are equal    verify experimentally that base angles of an isosceles triangle are equal    prove that the base angles of an isosceles triangle are congruent    proof that the base angles of an isosceles triangle are congruent    prove proposition i 5 that the base angles of an isosceles triangle are equal to one another    complete the proof that the base angles of an isosceles triangle are congruent    issa tried to prove that the base angles of an isosceles triangle are congruent    javier wants to prove that the base angles of an isosceles triangle are congruent  
結果 : prove that base angles of an isosceles triangle are equal