Question

If R is right angle, what is the possible value of j?

1 (2j-10)
​

Answer 1

Answer:

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Answer 2

Given :- R is right angle .

To Find :-

• value of j .
• (2j - 10°) .

Answer :-

in we we can see that,

• ∆PRQ is a right angled ∆, right angle at R .
• ∠PQR = 60°
• ∠RPQ = j .

so,

→ ∠PRQ + ∠PQR + ∠RPQ = 180° (By angle sum property.)

→ 90° + 60° + j = 180°

→ 150° + j = 180°

→ j = 180° - 150°

→ j = 30° .

then,

→ (2j - 10°)

→ (2 * 30° - 10°)

→ 60° - 10°

→ 50° .

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