3.
L1 and L2 are complementary angles, L2 and L3 are supplementary
angles. If L1 = 45", find the measure of L3.
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1
Answer:
L3=135°
Step-by-step explanation:
L1+L2=90
45+L2=90
L2=90-45
L2=44°
L2+L3=180
45+L3=180
L3=180-45
L3=135°
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