The correct answer is 60 cm
Answer:

Step-by-step explanation:
In any circle the following ratios are equal
= 
=
= 
Answer:
hypotenuse=root of( base square + height square)
Step-by-step explanation:
by using pythogorus theorem we can find the side of any right triangle square
Answer:
x + y = 5
<u>3x - 4y = 8</u><u> </u><u> </u><u> </u>
3x + 3y = 15
<u>3x - 4y = 8 </u>-
7y = 7
y = 1
x + y = 5
x + 1 = 5
x = 4
x = 4
y = 1
Hope it helps!