Question

trangle is 80 degree other is 1:3 find other trangles

Answer 1

find other triangle or other angles????

I think your question is, one angle of the triangle is 80° and other two angles are in the ratio of 1:3 then find other angles?,


let other angles be A and 3A,

then

By angle sum property, we have

80° + A+3A =180°,

4A=180°-80°,

4A=100°,

then

A=100/4=25°,

hence

other two angle will be

25° and (3×25=75°)

Answer 2

Hey mate !!

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Here's your solution

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As we know,

Sum of all angles of a triangle is equal to 180 degree.

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So,

Let the angles be 1x and 3x.

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Now,

Adding them all

1x + 3x + 80 = 180
4x + 80 = 180
4x = 180 - 80
x = 100/4
x = 25

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Now, putting the value as we have got x = 25

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1x = 25×1
1x = 25 degree ( 1st angle )

3x = 25 × 3
3x = 75 degree ( 2nd angle )

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3rd angle is already given.

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HOPE it helps you !!!

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Gud night and Take care

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