Answer:
Step-by-step explanation:
see the attached figure with letters to better understand the problem
we know that
In the right triangle ABD
In the right triangle BCD
remember that
m< BAD=m<CBD
therefore
equate the equations
Answer:
6.99
Step-by-step explanation:
<span>1. (s/3)-4=2
</span>3[(s/3)-4=2]
s-12=6
+12 +12
s = 18
<span>
2. (c/2)+5=1
</span>2[(c/2)+5=1]
<span>c+10=2
-10 -10
c = -8
3. 9+(a/6)=8
</span>6[9+(a/6)=8]
<span> 54+a=8
-54 -54
a = -46
</span>
It is a square. It looks the same from 4 angles and has 4 lines of symmetry