Answer:
21 cm
Step-by-step explanation:
25-4=21
The total length of the steel used in the frame is 270 cm, if the decorative steel up of 6 stems and each stem is 45 cm.
Step-by-step explanation:
The given is,
Decorative steel made from circular circle of 6 stems
The length of the stem is 45 cm
Step:1
We need to find the total length of the steel used in the decorative steel,
Let, T - Total length of the steel
L - Length of the stem
n - Number of stems used in steel frame
Step:2
Formula to find the total length of the steel is,
× 
From given,
= 45 cm
= 6 stems
Substitute the values in formula,
( 45 × 6 )
= 270
270 cm
Result:
The total length of the steel used in the frame is 270 cm.
I am not sure...but....
(780/1950) * 360 ( as a circle has 360 degrees, you multiply with 360)
Ans= C 144.
Juan is in the middle
<u>Explanation:</u>
Given:
Five students in total
_ _ _ _ _
Juan is not the shortest. So, Juan can be in 2nd, 3rd, 4th or 5th position.
_ J J J J
Tad is the tallest and not standing next to Juan, So,
_ J J _ T
Caroline is next to Tad. So,
_ J J C T
Juan is not standing next to Pamela. So,
P _ J C T
Marco is taller than Pamela. So,
P M J C T
The height is arranged in increasing order from Pamela to Tad.
Thus, from the series we can see that Juan is in the middle.