a. 3,8,√2
b. 2,2,√3,4
c. 7, 7√2,14
d. 5, 10√3,10
e. 3,√3,6
explain your answer
2006-12-10 15:53:56 · 12 answers · asked by jrrkidd 1 in Science & Mathematics ➔ Mathematics
if the second part is 2 ,2*sqrt3 and 4 then that is the answer, otherwise all answers are wrong. 4 would be the side opposite the right angle 2 would be the side opposite the 39 degree angle. this we can find by using the pythogorus theorem. for which u can search on google.
2006-12-10 15:58:57 · answer #1 · answered by zero 2 · 1⤊ 0⤋
B
Pythagorean Theorem states A^2+B^2=C^2
2^2+(2√3)^2=4^2
4+12=16
16=16
2006-12-10 16:01:19 · answer #2 · answered by Will 1 · 0⤊ 0⤋
The answer is not there .
In a 30-60-90 degree right triangle:
The longest side is the hypotenuse and is always twice the shorter leg. The longer is always equal to the shorter leg times the sqrt(3).
Thus a possible answer woulld be hypotenuse = 10, short leg = 5, and log leg = 5sqrt(3).
Another possibility is hypotenuse = 6, short leg =3 and
long leg = 3sqrt(3)
Perhaps the answer is b and you have accidentally put a comma in between the 2 and sqrt(3). Take that comma out and b is the answer.
2006-12-10 16:12:36 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
it has to be b It is a right angled triangle bcos (4)^2 + (4√3)^2 = 8^2 The longest side is the hypotenuse - 8 sin 60 gives u 4√3 / 8 = √3/2 cos 60 gives u 4 / 8 = 1/2
2016-05-23 04:09:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
B
Explanation:
The most primary 30-60-90 triangle consists of sides of 1,2, and √3. The answer B is simply the same triangle scaled up (all sides have been multiplied by 2).
That is, of course, assuming you made a typo with that extra comma.
2006-12-10 16:05:50 · answer #5 · answered by Robert 1 · 0⤊ 0⤋
the short side is X the Long side is x roots of 3 and the hypotenuse is 2x on a 30/60/90 I would memorize that one.
B
You might also want to memorize that on a 45/45/90 the leg is x and the hypotenuse is x roots of 2.
2006-12-10 16:03:34 · answer #6 · answered by alwaysmoose 7 · 0⤊ 0⤋
You know (from Pythagorean Theorem a²+b²=c²) that the largest number will be the hypotenuse, so just check if the square of the largest number is equal to the sum of the squares of the two smaller numbers.
Doug
2006-12-10 16:07:54 · answer #7 · answered by doug_donaghue 7 · 0⤊ 0⤋
b. 2, 2√3, 4
This is the only triplet that holds with the 1:√3:2 ratio.
2006-12-10 15:57:04 · answer #8 · answered by Lucan 3 · 0⤊ 0⤋
OMG!
errr....this is 8TH GRADE MATH!
all right traingles are 3-6-9 traingles.
now. considering i just did this for you.
and this resembles my homework in 8th grade....
but the question doesnt make sense.
your askingwhich lengths of the sides of the 369 right traingle give me the EXACT question adn ill do your homework.
2006-12-10 15:59:24 · answer #9 · answered by Anonymous · 0⤊ 0⤋
What are you trying to say on letter b? To find the answer, use the pythagoran thorem.
2006-12-10 16:01:08 · answer #10 · answered by Empress Sky 2 · 0⤊ 0⤋