Mark is making a decoration for a rally, using a string of triangular strips. Each strip is an isosceles triangle when flattened out. What is the measure of the third angle?

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Igaster · Answer 1 · 2020-12-20T17:57:34+0000

angle of triangle is 180°

the angle beside 70° is 70°also because it has mention it is an isosceles triangle so that the two angle must be same

third angle will be 180°-70°-70°=40°