D B
E
1
3
A
IC
Points A. B, and form a triangle. Complete the statements to prove that the sum of the interior angles of AABCIS
Statement
Reason
Points A, B, and Cform a triangle.
given
Let DE be a line passing through B and parallel to AC. definition of parallel lines
23 25 and 2124
mz1 = m24 and mz3 = m25
m24+ m_2 + m25 = 180°
pight li
Alternate Interior Angles Theorem
m2 1 + m2 + m23 = 180°
Alternate Exterior Angles Theorem
Corresponding Angles Theorem
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Congruent angles have equal measures

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).