Question

13. A water pipe (as shown in the diagram has the
3
inner diameter of 3 - cm and a wall thickness of
5
1
cm. What is the outer radius of
the pipe?
1
Hint. Radius = - diameter]
2
3
14. Is-2
a positive rational number or
5 15
5-60
a negative rational number?​

Answer 1

Answer:

don't know sorry buddy

Vvvvvvvv sorry dear

Answer 2

Answer:

13 Outer radius = Inner radius + thickness

so,

Ro = (3 3/4)/2 + 5/7

= 15/8 + 5/7

= 145/56 cm