An equilateral triangle is a triangle that has sides that are all equal. Every equilateral triangle is also an isosceles triangle. So any two 2sides that are = have equaled opposite angles. ... Therefore, since all three sides of an equilateral triangle are equal that means all three angles are equal, too.
Answer:
True
Step-by-step explanation:
First, we need to recognize that
Now, we can try to solve
Multiply each side by 
As we end up with an answer that cannot be true, we know that there is no solution.
Another method to solve this would be graphing the function 
When graphed, it can be seen that there is an asymptote at x=0 meaning that there is no value for x=0.
The two ends of the track are semi circles, so we need to calculate the circumference:
Circumference = PI x 56 = 175.84
The two straight parts are 130 m each:
Total perimeter = 175.84 + 130 + 130 = 435.84 m
The answer is D.
Answer:
a. <em>about 187 feet</em>
b. <em>about 19 trees</em>
c. <em>about 228 dollars</em>
What we know:
- 80 ft = hypotenuse
- 35 ft = short side
- x ft = long side
- it is a <em>right</em> triangle
a. Find the perimeter of the field. <em>about 187 feet</em>
<u>solve for the missing side length ('x')</u>:
- 35^2 + x^2 = 80^2
- 1225 + x^2 = 6400
- x^2 = 5175
- x = 15sqrt(23) or approx. 71.92
<u>add all side lengths</u>:
- P = 80 + 35 + 71.92
- P = 115 + 72 (rounded)
- P = 187 ft
b. You are going to plant dogwood seedlings about every ten feet around the field's edge. How many trees do you need? <em>about 19 trees</em>
- divide perimeter by 10 187/10 = 18.7
- round 18.7 trees = about 19 trees
c. If each dogwood seedling sells for $12, how much will the trees cost? <em>about $228</em>
- multiply trees by cost of each $12 x 19 trees = $228
- about $228 for the trees
871,000 is the answer. It would've said the nearest ten thousand but you need to find the nearest "thousand". Try to be careful for these questions. They can be tricky.
