Question

PLEASE HELP 1.Triangles ABC and DEF are similar. Find the length of segment EF.
A) 5 cm
B) 8.8 cm
C) 12 cm
D) 14 cm
2. Jennifer has a map of Yellowstone National Park. The scale on this map is 1 cm = 9.8 miles. Jennifer measured some distances on the map. What is the actual distance from Old Faithful to Canyon?
A) 22.54 miles
B) 24.5 miles
C) 27.44 miles
D) 29.4 miles
3.Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. Leave your answers in terms of pi.

When the radius doubles, does the area of the circle double?
A) 4π cm2; 8π cm2; NO
B) 4π cm2; 16π cm2; NO
C) 4π cm2; 16π cm2; YES
D) 4π cm2; 8π cm2; YES

Answer 1

1.C)12

2.D)29.4

3.C)4πcm^2;16πcm^2;YES

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Answer 2

Hope this answer helps you.

1)

By using csst,

length of segment EF=12cm.

2)

The distance is 29.4miles.

3)

Option no. B

Because when radius doubles the area becomes four times.

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