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07.04.2021 •
Mathematics
Elvin has three sails of different sizes for his model ships. Which of the sails are congruent, and which are similar?
45°
15 in.
3x in.
9 in.
- 10x)
5 in 4593 in.
Fly - 10x)"
EK IF
z in.
255
55°
BK
A 80
R
OR
4 in.
4 in.
Sail 1
Sail 11
Sail III
Solved
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Ответ:
Similar means angles are the same
Congruent means angles and sides are the same.
Sail 1 and sail 2 have the same angles but the sides are not the same.
So sail 1 and sail 2 are similar.
Ответ:
1.304 ×
Step-by-step explanation:
A number in scientific form has the form
a ×
where 1 ≤ a < 10 and n is an integer
Express 13, 040, 000 as a number between 1 and 10
= 1.304 ×
We require to get the number into its original form.
To do this we require to move the decimal point 7 places right
If left then n < 0 and if right then n > 0
Thus
= 1.304 ×