The base JK of isosceles triangle HJK is produced to L .if angle J=69, calculate HKL​

Given:

The base JK of isosceles triangle HJK is produced to L and angle J=69 degrees.

To find:

The measure of angle HKL.

Solution:

According to the given information draw a figure as shown below.

In triangle HJK, JK is base and base angles of an isosceles triangle are congruent.

JKL is a straight line. So,

       (Linear pair)

Therefore, the measure of angle HKL is 111 degrees.

4th option is correct xy=-10

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