Answer:
Step-by-step explanation:
Important note about this question
The diagram above shows a lot of angles
There is corresponding angles which is called the F angles and corresponding angles are equal
There is also alternative angle which is called the Z angles and alternative angles are also equal.
There is also vertically opposite angles which are also equals.....
Sum of angle at a point is 360°
Sum of angle on a straight line is 180°
11. To get angle angle "a" is vertically opposite to the 55°
Then, a=55°
Sum of angle "a" and "d" form a supplementary angle
Then a+d=180
Then, d=180-a
d=180-55
d=125°
c and d also makes a supplementary angles
c+d=180
c=180-d
c=180-125
c=55°
Also, c and b form complimentary angle
Then c+b=180
b=180-c
b=180-55
b=125°
c=d=55°, a=b=125°
13. Simple interest is given as
S.I=PRT/100
Where,
S.I is simple interest
P is the principal
R is the rate in %
And T is the time in years
Given that
S.I=?
T=2years
R=6%
Amount =Rs 5000
Note, Amount = P+S.I
5000=P+S.I
Then make P subject of formula
P=5000-S.I
S.I=PRT/100
S.I=(5000-S.I)×6×2/100
Cross multiple by 100
100S.I=(5000-S.I)12
100S.I=60,000-12S.I
100S.I+12S.I=60,000
112S.I=60,000
S.I=60,000/112
S.I= Rs 535.714
Then, the simple interest is
Rs 535.7
