问题
填空题
把∠ABC向下平移2cm得∠A′B′C′,则当∠ABC=30°时,∠A′B′C′=______.
答案
∵把∠ABC向下平移2cm得∠A′B′C′,
∴当∠ABC=30°时,∠A′B′C′=30°.
故答案为:30°.
把∠ABC向下平移2cm得∠A′B′C′,则当∠ABC=30°时,∠A′B′C′=______.
∵把∠ABC向下平移2cm得∠A′B′C′,
∴当∠ABC=30°时,∠A′B′C′=30°.
故答案为:30°.