Answer:
3 tiles will not fit together.
Step-by-step explanation:
Measure of an Interior angle of a polygon = 
Here, n = number of sides of the polygon
Therefore, measure of the interior angles of a regular hexagon,
A = 
A = 120°
Similarly, interior angle of the regular pentagon,
B = 
B = 108°
Now m∠A + m∠B + m∠C = 360°
m∠C = 360° - (120° + 108°)
= 132°
To fit the given three tiles perfectly, interior angle (∠D) of the third Octagonal tile should be 132°.
D = 
D = 135°
m∠C ≠ m∠D
Therefore, 3 tiles will not fit together.
Answer:
150
Step-by-step explanation:
Each square on a cube is 5 by 5 meters long.
The area of each square is 5 * 5, which is 25 square meters.
There are 6 sides on a square, so multiply 25 by 6, and you will get 150.
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Answer:
Sarah
Step-by-step explanation:
Alice: 75%
Mary: 80%
Sarah: 85%
Ellen: 60%
Answer:
110
Step-by-step explanation:
Let x = rate #1 and then 155-x=rate #2.
15x + 5(155-x) = 1225
15x - 5x + 775 - 1225
10x = 450
x = 45, second rate is 110