Question

In triangle PQR, mSP = 300

, mSQ = 550

. Find mSR. What kind of triangle it is ?show method​

Answer 1

Answer:

Nice question

Step-by-step explanation:

But I am weak in maths

Answer 2

Step-by-step explanation:

We know that, the sum of three angles of a triangle is 180°.

In ΔPQR,  ∠P + ∠Q + ∠R = 180°

⇒  55° + 25° + ∠R = 180°

⇒ ∠R = 180° – (55° + 25°)= 180° – 80° =100°

In ΔTSM,  ∠T + ∠S + ∠M = 180°

⇒   ∠T + ∠25°+ 100° = 180°

⇒  ∠T = 180°-(25° +100°)

=180°-125°= 55°



In ΔPQR and A TSM, and

∠P = ∠T, ∠Q = ∠S,

and  ∠R = ∠M

ΔPQR ~ ΔTSM [since, all corresponding angles are equal]

Hence, ΔQPR is not similar to ΔTSM, since correct correspondence is P ↔ T, Q < r→ S and R ↔M

it hink this example will help U dear.