Use the net to determine the total surface area.

the net of a triangular prism with height of 6 centimeters and each leg of the triangular base is 12 centimeters and its height is 10.4 centimeters is laid flat. (picture down below)

465.6 cm2

218.3 cm2

278.4 cm2

340.8 cm2

answer quick im doing a test

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Pls brainliest will be awarded if answer is correct

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.