in traingle PQR, if 3of angle P= 4of angleQ= 6of angle R. Find all the angles.
Answers
Answered by
2
Answer:
3∠P=4∠Q=6∠R⋯⋯(1)
In triangle PQR,
∠P+∠Q+∠R=180
o
⇒
3
6
∠R+
4
6
∠R+∠R=180
o
⋯⋯[from (1)]
⇒ 2∠R+
2
3
∠R+∠R=180
o
⇒
2
(4+3+2)
∠R=180
o
⇒
2
9
∠R=180
o
⇒ ∠R=
9
180
o
×2
=40
o
∴ ∠P=
3
6
×40
o
=80
o
and ∠Q=
4
6
×40
o
=60
o
Therefore,
∠P=80
o
, ∠R=40
o
, ∠Q=60
o
Answered by
2
Step-by-step explanation:
The principle of reversibility presupposes that the attenuation of a light ray during its passage through an optical medium because of reflection, refraction, and absorption is not affected by a reversal of the direction of the ray.
Similar questions