Question

I need this solution ​

Answer 1

answer is 110

because d triangle is equilateral triangle

so by the theorem of equilateral triangle

angle oab=angle oba

therefore angle oab=35

therefore angle oba=35

therefore the sum of all triangle is equal to 180

Dev 4 180=x+35+35

180=x+70

180-70=x

*x=110

hence proved