How many triangles can be constructed with angles measuring 70, 70 and 70 write a mathematical equation to prove your answer

zero triangles. No triangle can be formed with angles measuring 70°, 70° and 70°

Explanation:
In any triangle (regardless its type), the sum of the interior angles should always be 180°.

Now, assume we have 3 angles each measuring 70°.
Sum of these three angles = 70 + 70 + 70 = 210° which is greater than 180.

Since we mentioned that the sum on interior angles MUST be 180, therefore, the given measurements cannot be combined to form a triangle.

Hope this helps :)