If Zer is complementary to ZDFH, then A ZJEK is complementary to ZCEL
B. ZJEK ZLPE
C. ZJEK is supplementary to ZHPG
D. JERZCFL

A.

Step-by-step explanation:

<JEK is complementary to <DFH.

From the figure we see that angles DFH and HFG are complementary.

Since angles JEK and HFG are both complementary to <DFH, then

<JEK is congruent to <HFG

<HFG is vertical to <CFL, so angles HFG and CFL are congruent.

That makes angles JEK and CFL complementary.

A.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: