The angles of a triangle are in the ratio 3:7:8. Find the angles.
Find the value of 'x' if 15,30 and x are in continued proportion .
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The ratio of angles of triangles are 3:7:8
Let the measures of triangles are 3x,7x,8x.
⇒ 3x+7x+8x=180
o
[ Sum of angles of triangle is 180
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]
⇒ 18x=180
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⇒ x=
18
180
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=10
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⇒ 3x=3×10
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=30
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⇒ 7x=7×10
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=70
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⇒ 8x=8×10
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=80
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∴ Greatest and the smallest angles are 80
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and 30
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.
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