Question

Do it.................⭐

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Answer 1

$\huge\boxed{\fcolorbox{cyan}{grey}{Solution:–}}$

$We\:know \:that\:the\:sum\:of\:all\:the\:angles\:of\:a\:triangle\:is\:180°$

$∴\:∠A+∠B+∠C=180°$

$Also\:∠A+∠B=(65°+70°)=135°$

$∴\:∠C=(180°-135°)=45°$

$Hence,∠C=45°$

Answer 2

Answer:

angle a+ angle b+ angle c = 180(angle sum property =65+70+angle c =180=135+angle c=180=angle c =45