Find expert answers and community-driven knowledge on IDNLearn.com. Discover in-depth and trustworthy answers from our extensive network of knowledgeable professionals.
Answer:
12
Step-by-step explanation:
this is answer of q.n.8
__________________
3x+5+4x+7+6x+12=180°[being sum of angle of triangle is 180°]
13x+24=180
13x=180-24
13x=156
x=156/13
x=12