Answer:
Step-by-step explanation:
For similar figures, side lengths (and any other linear measure) are proportional. Areas are proportional to the square of the scale factor for side lengths.
Perimeter 1/Perimeter 2 = CD/EF
21/18 = CD/6
CD = 6(21/18)
CD = 7 . . . cm
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Area 2/Area 1 = (Perimeter 2/Perimeter 1)²
Area 2/98 = (18/21)²
Area 2 = 98(6/7)²
Area 2 = 72 . . . cm²
Answer: a: 4:5, b: 5:4, c: 5:9
Step-by-step explanation:
Answer:
10p+5
Step-by-step explanation:
Answer:
105
Explanation:
Adding 5% of 100, to 100 is:
100(0.05) + 100
The extra 100 is added because 100(0.05) only gives you what 5% of 100 is.
