Question

In rectangle JKLM, angle KNL is 5x - 20. Find the measure of angle JKL

A) 90
B) none of the other answers are correct
C) 80
D) 40
E) 60

Answer 1

we know that

if JKLM is a rectangle

then

the interior angles are equal to 90 degrees

so

∠MJK=∠JKL=∠KLM=∠LMJ=90°

therefore

the answer is

the measure of angle JKL is 90 degrees