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In the given figure,lines XY and LM intersect at O. If ∠XOL = a, ∠LOP=b, ∠POY=90°, ∠XOM=c and a:b = 2:3, find the value of c. |
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Answer» ━━━━━━━━━━━━━━━━━━━━━━━━━ In the given FIGURE,lines XY and LM intersect at O. If ∠XOL = a, ∠LOP=b, ∠POY=90°, ∠XOM=C and a:b = 2:3, find the value of c. ━━━━━━━━━━━━━━━━━━━━━━━━━ It is given that a:b = 2:3. So, let a=(2x)° and b=(3x°). In the given figure OP stands on line XY. ∴ ∠XOP + ∠POY = 180° ⟹ ∠XOL + ∠LOP + 90° = 180°⠀⠀[∴ ∠POY=90°] ⟹ a + b + 90 = 180 ⟹ a + b = 90 ⟹ 2x + 3x =90 =5x=90=x =18. Again,ray OX stands ob line LM. ∠LOX + ∠XOM = 180° ⟹ a+c=180° ⟹ 36° + c =180° ⟹ c=(180°-36°)=144° Hence,c=144°. ━━━━━━━━━━━━━━━━━━━━━━━━━ |
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