If ΔPRQ

has ∠P=30
and ∠R=127
and ΔFGH
has ∠H=30
and ∠G=23
, what criterion has been met to prove the triangles similar?(1 point)
Responses

ASA
ASA

SSS
SSS

AA
AA

SAS

1 answer

To determine if the triangles \( \Delta PRQ \) and \( \Delta FGH \) are similar, we can check the angles given.

For \( \Delta PRQ \):

  • \( \angle P = 30^\circ \)
  • \( \angle R = 127^\circ \)
  • To find \( \angle Q \): \[ \angle Q = 180^\circ - \angle P - \angle R = 180^\circ - 30^\circ - 127^\circ = 23^\circ \]

For \( \Delta FGH \):

  • \( \angle H = 30^\circ \)
  • \( \angle G = 23^\circ \)
  • To find \( \angle F \): \[ \angle F = 180^\circ - \angle H - \angle G = 180^\circ - 30^\circ - 23^\circ = 127^\circ \]

Now we have:

  • \( \Delta PRQ \): \( \angle P = 30^\circ \), \( \angle R = 127^\circ \), \( \angle Q = 23^\circ \)
  • \( \Delta FGH \): \( \angle H = 30^\circ \), \( \angle G = 23^\circ \), \( \angle F = 127^\circ \)

Both triangles have the same set of angles:

  • \( \angle P \) corresponds with \( \angle H \)
  • \( \angle Q \) corresponds with \( \angle G \)
  • \( \angle R \) corresponds with \( \angle F \)

Since both triangles have two pairs of equal angles, we can use the AA (Angle-Angle) criterion for similarity.

Therefore, the correct response is:

AA