Answer:
30°
Step-by-step explanation:
Answer:
I don't really know
Step-by-step explanation:
I don't really know but if you want to find out math questions try this website called wolfram alpha. It's great with those type of stuff.
Answer:
P = a + b + c
Step-by-step explanation:
Well, the formula is most likely P = a + b + c unless any more information is provided. Adding all three sides together will give you the perimeter.
Hope this helps!
Answer:
Perimeter = 78.7 inches
Step-by-step explanation:
From the given question, applying the Pythagoras theorem to one of the congruent triangles formed, we have;
=
+ 
=
+ 
=841 + 81
= 922
hyp = 
= 30.3645
The perimeter of the triangle can be determined as;
perimeter =
+
+ 
= 30.3645 + 18 + 30.3645
= 78.729
The perimeter of the triangle = 78.7 inches
Answer:
r
Step-by-step explanation:
10r - 9r = r