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In the given figure M is the center of a circle. find the value of angle FHG

Mathematics GK by Pathshala Nepal
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In the given figure, M is the center of the circle. If ∠GEF = 2x° and ∠EGF = 3x°, find the value of ∠FGH.


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Solution:

Given,

M is the center of the circle.
∠GEF = 2x° and ∠EGF = 3x°

To find:

The value of ∠FHG

Here,

  1. ∠EFG = 90°, being angle inscribed in a semi-circle

  2. ∠GEF + ∠EFG + ∠EGF = 180, being sum of the angles in a triangle.
    Or, 2x° + 90° + 3x° = 180°
    Or, 5x° = 180° - 90°
    Or, 5x° = 90°
    Or, x° = 90/5 = 18°

  3. ∠FHG = ∠GEF , being circumference angles of a circle standing on a same arc.
    = 2x°
    = 2 x 18°
    = 36°

∴ The value of ∠FGH = 36°

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