Question

if the two angles of a tringle are 30⁰ and 40⁰ respectively then measure of the third triangle is
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Answer 1

Answer:

110 degree

Step-by-step explanation:

let the third angle be x

so the sum of the angles of the triangle is

,30+40+ x = 180 degree

70 +x = 180 degree

x=180 -70

x = 110 degree

so the third angle is 110 degree

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Answer 2

${\huge{\bf{\red{\underline{\underline{Given :}}}}}}$

The two angles of a tringle are 30⁰ and 40⁰ respectively.

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${\huge{\bf{\blue{\underline{\underline{To Find:}}}}}}$

Find the measure of 3rd angle.

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${\huge{\bf{\orange{\underline{\underline{Formula \: used:}}}}}}$

Angle sum property :

According to this property sum of all the angles of a triangle is 180 degree .

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${\huge{\bf{\green{\underline{\underline{Solution :}}}}}}$

${\sf{\orange{1st \: angle = 30 \: degree}}}$

${\sf{\orange{2nd \: angle = 40 \: degree}}}$

${\sf{\orange{3rd \: angle = ?}}}$

${\sf{\orange{3rd \: angle = 30 + 40 + x = 180 degree(angle \: sum \: property) }}}$

${\sf{\orange{3rd \: angle = 70 \: degree + x = 180 \: degree}}}$

${\sf{\orange{3rd \: angle = x = 180 \: degree - 70 \: degree }}}</p><p>$

${\mathfrak{\red{\boxed{= 110 degree}}}}$

So,

The 3rd angle is 110 degree.

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${\mathfrak{\blue{\boxed{XitzNobitaX}}}}$