Find the last angle:
180-(30+90)
180-(120)
60
Evaluate using sine rule:

=

c=

=

=20
The length of line segment AB is 20 feet (answer choice C)

This is the problem that we need to solve. The best way to get about it is to first:
- Multiply the constant numbers (3 and 17). 3×17 is 51.
- Next multiply the radicals.

- Simplify the squareroot of 108 since it is 49 times 2. It would be equal to 7 squareroots of 2.
- Our final answer would be:

- 51 x 7 is 357, so the answer above is right.
The skills needed are multiplication, mulitplication of radicals, and simplifying radicals, so if you want to review anything use these as reference.
Hope you understood and have a nice day!!
Answer: Mary covers less distance for 320 m
Step-by-step explanation:
Psqere=4a
Prect=2(a+b)
anna=4*4a (a=90m)
Anna=16*90=1440m
Mary=4*2(a+b)=8(a+b)=8*(80+60)=8*140=1120 m
anna-Mary=1440-1120=320m
The width of the rug is 9 feet.
Step-by-step explanation:
Perimeter of rug = 42 feet
Lengths are same in square and rectangle shapes; therefore;
Length of rug = 12 feet
Width of rug = w
Perimeter = Length + Length + Width + Width
Perimeter = 

Dividing both sides by 2

The width of the rug is 9 feet.
Keywords: perimeter, division
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