can someone help me please?
Part 1: m∠1+m∠2+m∠3=1805X-5+3X+2X-5=18010X-10=18010X=190X=19That's the value of X~.Part 2: ∠4=180-∠3∠3=2X-5, because X=19So, ∠3=33°∠4=180-33∠4=147°That's your answer lovely~