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Anni [7]
3 years ago
13

The ratio of the perimeters of two similar triangles is 3:7. Find the ration of the areas! Please help, I am really not sure. An

d please explain well in terms that I can understand and draw a visual as well.
Mathematics
1 answer:
PIT_PIT [208]3 years ago
5 0
I don't have a visual I can provide, but the ratio of the areas is the square of the ratio of the perimeters of a 2D figure.

Intuitively, you can imagine that the triangle is simply being "scaled up" by a factor of 7/3, so the base scales up to 7/3 its original length and the height becomes 7/3 its original height.

Therefore, the new ratio is the square of the ratio of the perimeters, which is 9:49.
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The width of a rectangle varies directly as it’s length. What is the perimeter of a rectangle that is 15 inches long?
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Need help with this. Show your steps so I could check my work and my answer.
andrezito [222]

Answer:

25

Step-by-step explanation:

The angle at C is 90 degrees, and BCD is a right triangle, so we can applythe Pythagorean theorem here -- 60²+m²=65², so 65²-60²=m²=625. The possible values for m are 25 and -25, and since m can't be negative, 25 is our answer as 25 is the square root of 625

8 0
4 years ago
An angle measures 1 degree. what fraction of a circle does the angle turn through
AlladinOne [14]

Answer:

1/360

Step-by-step explanation:

Since there are 360 degrees in a circle, a single one of these would mean that the angle turns through 1/360th of a circle. Hope this helps!

3 0
3 years ago
Write the next four terms of given ap<br> 1/6 , 1/3, 1/2​
Ira Lisetskai [31]

Answer:

answer is 2/3,5/6,1 and 7/6.

Step-by-step explanation:

first term(a) =1/6

common difference (d) =t2-t1

=1/3 - 1/6

= 1/6

We know,

tn=a+(n-1)d

= 1/6 +(n-1)*1/6

= 1/6 + 1/6n - 1/6

= 1 /6 n

Now,

t4= (1/6)*4

=2/3

t5=(1/6)*5

=5/6

t6=(1/6)*6

=1

t7=(1/6)*7

=7/6

Therefore, the next four terms are 2/3,5/6,1 and 7/6.

8 0
3 years ago
Read 2 more answers
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