The angles of a triangle are in the ratio 5 : 3 : 7 then anwer the following.
1 here the triangle is
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Answer
ACUTE ANGLED TRIANGLE
Step-by-step explanation:
angles of triangle in the ratio = 5:3:7
let, common ratio be x
therefore,
1st angle=5x
2nd angle=3x
3rd angle=7x
sum of all angles in a triangle = 180degrees
so, 5x+3x+7x = 180degrees
15x = 180degrees
x=180/15 = x = 12degrees
1st angle = 5x = 5×12 = 60degrees
2nd angle = 3x = 3×12 = 48degrees
3rd angle = 7x = 7×12 = 84degrees
here , all angles are less than 90degrees
so the triangle is acute angled triangle.
Answered by
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Answer:
5x+3x+7x = 180`
15x = 180`
x = 12`
5x = 5(12) = 60
3x = 3(12) = 36
7x = 7(12) = 84
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