Hello,
9)
∠DBC=90-54=36°
∠CAD=∠DBC=36°
10)
∠BOC=1/2(360-2*100)=1/2*160=80°
∠l=1/2∠AOD=1/2∠BOC=40°
11)
JL=10
JA=7==>AL=10-7=3
LC=AL=3
LK=11
CK=11-3=8
KB=KC=8
BJ=JA=7
perimeter=10+11+15=36
we are given
a number is 429
where 4 is underlined
For finding value of digits , we always start from right side
Firstly , it comes unit digit
multiply by 1
Secondly , it comes tenth digit
multiply by 10
Thirdly , it comes hundredth digit
multiply by 100
we can see that 4 is third digit from right
so, it will at hundredth place
To find it's value, we multiply by 100
so, we get

.............Answer
6^5 = 6•6•6•6•6
x^7 = x•x•x•x•x•x•x
x^5 = x•x•x•x•x
5^6 = 5•5•5•5•5•5