5,7 and 8 are right angles, and 6 is an acute angle this is because of u look at 9 and 10 you can see a little box looking thing under the h and if u do that to all of them 5, 7 and 8 can fit the little box but 6 you can’t because it is an acute angle. Hope this helped!
Answer:
The room is 19,5m long and 13m wide.
Step-by-step explanation:
1cm -> 6,5m
3cm -> 19,5m
2cm -> 13m
Answer:
-x + 1
Step-by-step explanation:
-10x^2 - x + 6 + 10x^2 - 5 = -x + 1
The 10x^2 cancels out with the -10x^2