Question

2.3 Find the area
of following figure : -
Q.N=3CM.
PR = 9cm
- Nucm
3 см
'R​

Answer 1

Answer:

where is ur figure my friend...

Answer 2

Answer:

Let us suppose the angles of a ΔPQR such that ∠P < ∠Q < ∠R.

A.T.Q,

∠Q = 2∠P

∠R = 2∠P

Now, ∠P + ∠Q + ∠R = 180∘ (Angle sum property)

⇒ ∠P + 2∠P + 3∠P = 180∘

⇒ 6∠P = 180∘

⇒ ∠P = 30∘

Therefore,

∠P = 30∘

∠R = 60∘

∠R = 90∘

Hence, the measure of each angle is 30∘, 60∘ and 90∘respectively.