contestada

Which statement about BQ←→ is correct?



BQ←→ is a tangent line because m∠ABQ=90°.

BQ←→ is a tangent line because △ABQ is not a right triangle.

BQ←→ is not a tangent line because ∠BAQ is an acute angle.

BQ←→ is not a tangent line because ∠BQA is an acute angle.

Which statement about BQ is correct BQ is a tangent line because mABQ90 BQ is a tangent line because ABQ is not a right triangle BQ is not a tangent line becaus class=

Respuesta :

vshead111
The first choice because angle ABQ equals 90 degrees
aachen

We have a circle A and a line segment BQ is passing through the circle A such that it forms a triangle ABQ.

From the diagram, we have some information about the angles of triangle ΔABQ as follows :-

angle QAB = 36 degrees and angle BAQ = 54 degrees.

We know about the Triangle Sum theorem which states "The sum of all interior angles of any triangle is 180 degrees".

We can use this theorem to find the third angle of the triangle ΔABQ.

∠ABQ + ∠BQA + ∠QAB = 180 degrees

∠ABQ + 54° + 36° = 180°

∠ABQ + 90° = 180°

∠ABQ = 180° - 90°

∠ABQ = 90 degrees

If any line makes a right angle with the radius of any circle, then this line must be a tangent to that circle.

So, BQ would be a tangent line because angle ∠ABQ = 90 degrees. Hence, option A is correct.