Is there a picture so I can see it
you'd use the pythagorean theorem.
a^2+b^2=c^2
a is the first leg, b is the second leg, and c is the third leg.
10^2+13^2=c^2
100+169=c^2
269=c^2
take the square root of both sides
16.4=c
16.4cm is your answer!
25 - 0.15(40)
25-6
19
The remaining balance is $19.
Hope this helps!
27°
The angle which a chord subtends at the centre of a circle is twice the angle it subtends on the circumference.
i.e
