A=spr=(180-90)÷2=45
answer: a=45
Answer:
2400000pi cubic meters of dirt had to be removed to build the Chunnel.
Step-by-step explanation:
Volume of a <em>half-cylinder</em> can be stated as:
where
- r is the radius (here the height)
- h is the height ( here the lenght)
Thus, one half-cylinder tunnel volume is:
=800000pi
Since there are 3 half-cylinder tunnels, 3×800000pi=2400000pi cubic meters of dirt had to be removed to build the Chunnel
If you're talking about the soccerball to football one, it would be a
Answer:
SSS similarity
Step-by-step explanation:
From the smaller triangle to the larger triangle, the ratio of each pair of corresponding sides is 2.