If my math is correct your answer would be C 5.2
Answer: D. 0.6
Step-by-step explanation:
When the two cones are similar the corresponding radius and heights are in the same proportion,
Thus, By the given figure,
Two cones having radius 3 and x and having heights 10 and 2 respectively are similar.
So, We can write,




Thus, Option D is correct.
Answer:
9.6km / 9600m
Step-by-step explanation
B= 0.5km
L = 0.7km
perimeter of a rectangle = 2(L+B)
= 2( 0.7 + 0.5)
= 2.4km
wire for one round is 2.4km
wire for 4 rounds = 2.4 x 4
= 9.6km wire is required.
Hence, 9.6km wire is required to fence the rectangular piece of land 4 times.
The answer is D. Every half an hour it goes up by 30, so every hour is 60