Number six is 163 cm because the width which is 5 plus another five because of the another side is 10. 34-10=24=the length added together. 24/2=12=the length. 12+5=17. 1 triangle= 180. 180-17=163. so, the perimeter of triangle ABD is 163 cm.
Answer:
5.8
Step-by-step explanation:
just add 2.9 plus 2.9 and u get 5.8 u see how 2.9 is written on one side do that to the other only do thing with the sides are the same SIZE
Simplify both sides then isolate the variable
x=-18