If swing a is shorter in length than swing b. what effect will this have on swinging? a-when pushed, swing b will move back and forth slower than swing a. b-when pushed, swing a will move back and forth slower than swing b c-when pushed, both swings will move back and forth at the same time d-when pushed, both swings will move back and forth at a faster pace

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.