If isosceles triangle ABC has a 130 ° angle at vertex B, which statement must be true? mangle A=15 ° and mangle C=35 ° mangle A+mangle B=155 ° mangle A+mangle C=60 ° mangle A=20 ° and mangle C=30 °

Question
If isosceles triangle ABC has a 130 ° angle at vertex B, which statement must be true? mangle A=15 ° and mangle C=35 ° mangle A+mangle B=155 ° mangle A+mangle C=60 ° mangle A=20 ° and mangle C=30 °
Answer:
If isosceles triangle ABC has a 130 ° angle at vertex B, which statement must be true? mangle A=15 ° and mangle C=35 ° mangle A+mangle B=155 ° mangle A+mangle C=60 ° mangle A=20 ° and mangle C=30 ° 65047d1453b87.webp
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geometry 10 months ago 8152