In isosceles trapezoid HJKL, 
. If m
= 45°, JK = 6 cm, and the length of an altitude is 4 cm, find the exact perimeter of HJKL.
A. (20 + 4
) cm
B. (20 + 8) cm
C. (20 + 4
) cm
D. (20 + 8) cm
Answer: B
Mathematics
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