Answer:
4.5
Step-by-step explanation:
There is a formula for the Intersection of chords
10*x = 9*5
here.
so.... x = 45/10 = 4.5
Try deriving the equation you get to make sure your calculation is right.
#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!
-8th grader
Answer:
0.253
Step-by-step explanation:
since it is greater than 0.243
Step-by-step explanation:
The surface area of a square pyramid is the area of the square base plus the area of the 4 lateral faces:
A = b² + 4 (½ bl)
A = b² + 2 bl
where b is the width of the base,
and l is the slant height.
