Answer:
56.55600 cm
Step-by-step explanation:
Radius ( r ) = 9 cm
Formula : -
Perimeter ( semi - circle ) = πr + 2r
Perimeter ( semi - circle )
= πr + 2r
= ( 3.142 x 9 ) + ( 2 x 9 )
= 9 ( 3.142 + 2 )
= 9 x 6.284
= 56.55600 cm
Answer:
1, spread out from
2, larger
Step-by-step explanation:
For this case what we must do is use the cosine theorem to solve the problem.
We have then:

Where,
a, b, c: are the sides of the triangle.
x: is the angle between the sides a and b of the triangle.
Substituting values we have:

Clearing c we have:
Answer:
option 1
Answer:
Distance= 15.3
Step-by-step explanation: