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In an isosceles triangle ,the base …

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In an isosceles triangle ,the base angle are equal. the vertex angle is 40 degree what are the base angle of the triangle? ( Remember ,the sum of three angle of a triangle is 80 degree).

Posted by Pushp 777 6 years, 3 months ago

CBSE > Class 07 > Mathematics

3 answers

Golve Sree Shashank 6 years, 3 months ago

70 degree each

0Thank You

Sunamra Peda 6 years, 3 months ago

x+x+40=180 =2x+40=180 =2x=180-40 =2x=140 =x=140/2 =x=70. Each angle of base is 70

2Thank You

Vanshika Marwaha 6 years, 3 months ago

Let first angle be =x Let another angle =x because in an isosceles triangle base angles are same Equation= X+X+40=180• =2x+40=180• 2x=180-40 2x=140• X=140/2 X=70• Base angles =70•each

2Thank You

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CBSE > Class 07 > Mathematics