The areas of two similar triangles are 18 cm2 and 8 cm2. One of the sides of the first triangle is 4.5 cm. What is the length of
the corresponding side of the other triangle?
2 answers:
Answer:
The corresponding side is 3 cm
Step-by-step explanation:
When we have area, it is the related to the scale factor by the scale factor squared
Area large/ area of small = 18/8 = 9/4
Take the square root
sqrt(9/4) = 3/2
The scale factor is 3/2 large to small
The large side is 4.5 cm
large 3 4.5 cm
-------- = ------ = -----------
small 2 x cm
Using cross products
3x = 2(4.5)
3x =9
Divide each side by 3
3x/3 = 9/3
x =3
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Answer:
10.9=n
Step-by-step explanation:
A. Solution set is in the attachment (dark green shading in the middle)
B. Yes, 2(5) + 3(1) ≤ 15; 13 is less than or equal to 15
5 + 1 > 3, 6 is greater than 3
C. (4, 2) means that he buys 4 sandwiches and 2 hot lunches
Answer:
-8 km
Step-by-step explanation:
Answer:
There should be one more equation
Step-by-step explanation:
It cannot be 30, because the sum of two sides should be more than third side
-not D
10+18=28 <30
it cannot be 6 +10 < 18
it cannot 8
8+10=18
so it is has to be C) 12
12+18>10
10+12>18
10+18>12
answer C. 12 cm