Question

a right triangle had an area of 21 inches m^2 the dimensions of the triangle are increased by a scale factor of 4 what is the area of the new triangle

Answer 1

a.)42 m^2
b.)84 m^2
c.)168 m ^2
d)336 m^2

Answer 2

So, its saying that all the sides got bigger; it grew 4 times its original size.
So, if the base was 2m, and the height was 4m, the new dimensions would be b=8m and h=16m.
In this example, the first area would be 4m^2, and the new area would be 64m^2. If you compare the areas, from the original to the new, the area increased 16 times the original.
So, we can apply this to the question you have; 21*16 is your new area.

Answer 3

so d?

Answer 4

using a scale of this map is 1 inch = 30 miles. how many actual miles does 5.25 inches represent

Answer 5

a)2.2 inch x 3.3 inch
b.)2.4 inch x 3.6 inch
c.)2.8 inch x 4.2inch
d.)2.9inch x 5.0 inch

Answer 6

So, for this one, it was kind of tricky, but just see which answer adds up to 5.25 in.