Consider triangle WXY.

If triangle RST is an acute triangle, then m∠S must be
Which statements regarding the diagram of ΔEBC are true? Select three options.
Triangle JKL is isosceles. The measure of angle J is 72° and the measure of angle K is 36°. Which statement describes angle L?
A triangle is shown with its exterior angles. The interior angles of the triangle are angles 2, 3, 5. The exterior angle at angle 2 is angle 1. The exterior angle at angle 3 is angle 4. The exterior angle at angle 5 is angle 6.

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