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Two angles of a triangle are 30°and 80°.find the third angle.. Pls ans

Posted by Latha Ilango 4 years, 11 months ago

CBSE > Class 07 > Mathematics

3 answers

Smriti Gupta 4 years, 11 months ago

30+80=110 180 - 110= 70

0Thank You

Yogita Ingle 4 years, 11 months ago

Two angles of a triangle are 30°and 80°.

Sum of angles of triangle = 180°

30° + 80° + third angle = 180°

110° +third angle = 180°

third angle = 180° - 110°

= 70°

0Thank You

Gaurav Seth 4 years, 11 months ago

Let the third angle be x.

80 + 3 0 + x = 180 degrees.

Because we know that sum of all angles in a triangle is 180.

=> 1 1 0 + x = 1 8 0
=>x=180-110.
=>x=70 degrees.

0Thank You

ANSWER

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CBSE > Class 07 > Mathematics