Question

If in a triangle PQR- 4P 80°,Q= 40° , find 2 R

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Hey mate:

Good Question:

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As,you know in a triangle sum of all angles is equal to 180°.

So,P Q R = 180°,

Substitute the value:

180°-4 P = 80°,

- 4 P=80-180,

- 4 P=- 100,

P=-100/-4,

P=25°,

Now we should find the value of R:

P + Q + R = 180°(sum of all sides = 180°),

Substitute the given values:

25°+40°+R°=180°,

65°+R°=180°,

R°= 180° - 65°,

R° = 115°,

So,2 R = 2(115)°,

⇒230° is the final answer.

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