Answer:
200√3
Step-by-step explanation:
The triangle given here is a special right triangle, one with angles measuring 30-60-90 degrees. The rule for triangles like these are that the side opposite the 30° angle can be considered x, and the side opposite the 60° angle is x√3, while the hypotenuse, or side opposite the right angle, is 2x. All we need to know here are the two legs to find the area.
Since b is opposite the 30° angle, it is x, while side RS is opposite the 60° angle, meaning it is equal to x√3, meaning that the area of the triangle is 1/2*x*x√3. We can substitute in 20 for x, making our area 1/2*20*20√3. Multiplying we get 10*20√3, or 200√3.
Answer:
D
Step-by-step explanation:
Use law of sines
320ft/sin(17) = x ft/sin(128)
x = 862.5
Find 17 degrees using 180 - 128 - 35 = 17
Answer:
The answer is 1 & 7/8 or the middle option
27
You can find the area of a triangle with base b and height h using this formula.
A=
1
2
bh
The triangle has base b=6miles and height h=9miles.
Find the area.
A
=
1
2
bh
=
1
2
(6)(9)
= (3)(9)
= 27
The area of the triangle is 27 square miles.
Answer:
slope=1/4
y-intercept=3
y=.25x+3
Step-by-step explanation:
slope=rise over run so
slope=1/4
y-intercept is the value of y where the line crosses the y axis..
y-intercept=3
In y=mx+b form m is slope and b is y-intercept so...
y=.25x+3
