Question

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?

Answer 1

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°