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Tutors Answer Your Questions about Triangles (FREE)
Question 35681: Hi,
I posted a problem recently and received a ressponse with the formula for the problem. The question was:
A triangle has vertices(-2,1)(5,1)aand(0,6). what is it's area?
I came up with 42 units square, am I right?
Click here to see answer by Earlsdon(4900)   |
Question 37311: A poster in the shape of a triangle has one side that is five inches more the length of the shortest side, and another side that is three inches less than twice the shortest side. Find the dimensions of the poster if its perimeter is 42 inches
Click here to see answer by Paul(988) |
Question 38130: In triangle PQO if measure of angle P equals 21 degrees and measure of angle O equals 37 degrees, then
Choices
A) Triangle PQO is a scalene triangle
B) Triangle PQO is an acute triangle
C) Triangle PQO is a right triangle
D) Triangle PQO is an isoscleles triangle
Click here to see answer by ilana(236) |
Question 38133: In triangle ABC if segment BC is one inch shoter than segment AB, segment AC is 10 inches shorter than the sum of segment BC and segment AB, and the perimeter of triangle ABC is 72 inches, find the length of segment BC.
A) 20 in.
B) 21 in.
C) 31 in.
D) 32 in.
Click here to see answer by fractalier(1804)  |
Question 38257: if the midpoints of the sides of a triangle are joined, is the area of the determined triangle half the area of the original trianle? i worked it for an isosceles triangle and it didn't come to half the area, but i dont know if it works for the other triangles
Click here to see answer by fractalier(1804) |
Question 38137: The regular octagon is inscribed in a circle with a radius of 5 inches.Each side of the octagon has a length of 3 inches.
a. find the perimeter of the regular octagon
b. Draw apothem RT. Find the length of the apothem .
c. Find the area of the regular octagon.
Please help me to understand this question!!! Please and Thank You!
Click here to see answer by fractalier(1804) |
Question 38655: A triangle can be formed having side lengths 4,5,& 8. It is impossible, however, to construct a triangle with sidelengths 4,5 & 10. Using the side lengths 2,3,5,7 & 11, howmany different triangles with exactly 2 equal sides can be formed?
Click here to see answer by fractalier(1804) |
Question 41450: Can someone help me solve this problem?
I have a right triangle.
On the left side (the verticle left side ) is 7
and on top it is 25
I need to find the missing length on the botton for a right triangle.
Can you explain how you come up with the missing length in detail?
Thanks,
Sher
Click here to see answer by venugopalramana(3286)  |
Question 41740: Can someone help me with this problem?
Assume that the given triangle is isoseles. Help me find m < D and M < F
Left side of the triangle is 15, bottom left is labeled D to top is E.
Top acute angle at E is 72 degrees.
Right side of triangle from top E to right side is F is 15.
Thanks,
Ashley
Click here to see answer by abcdefg(37) |
Question 42784: I'm a 1st year college student who is 36 years old. My algebra skills are lacking, so I need a little help to undertsand what I'm doing with some formulas.
The question = The hypotenuse of a right triangle is 2 meters more than the length of the longer leg. The shorter leg is 10 meters. Find the length of the longer leg. I know the equation uses A^2+B^2=C^2 so my begining equation is 10+a=a+2 then it needs to be squared. This is where I start to get lost. Tutor, please help. I know the answer measures 10,24,26 meters. How can I show how I got to this?
Click here to see answer by aaaaaaaa(138) |
Question 46722This question is from textbook 
: The base of an isosceles triangle is 12 in. less than the length of the equal sides. If the perimeter of the triangle is 39 in., find the length of each of the sides.Please!This question is from textbook
Click here to see answer by Nate(3495) |
Question 46761: Hi, I have a question that I need help learning to solve. I'm hoping someone can help me. I've been struggling for quite a while. Thanks.
In an isosceles trinagle, the ratio of the measures of its base angle to its vertex angle is 1:43. What is the measure of each angle in triangle LOK?
Click here to see answer by adamchapman(301) |
Question 47652: Hello. I have a question about triangles. My problem is:
The length of one of the equal legs of an isosceles triangle is 8cm less than 4 times the length of the base. If the perimeter is 29cm, find the length of one of the equal legs.
I have tried everyother website I could find online and they all seem to lean more towards right triangles. Thank you for your help.
Click here to see answer by stanbon(26274) |
Question 47823: Hi i have a question concerning similar triangles:
A six foot man is standing 10 feet away from a 20 foot lamppost. What is the lenght of his shadow?
i tried to work it out and thought maybe i should use a proportion
20/10 X 6/a ----= 3 ft
thats what i got is that the correct answer? if not can you show me what is ? thanks!
Click here to see answer by venugopalramana(3286) |
Question 47984: Can someone help me with this problem?
"solve by using similar triangles (cont.):"
water is dripping out of a conical figure that has a diameter of 8 inches and a height of 12 inches. When the depth of the water is 8 inches, what is the radius of the water?
PLEASEE PLEASEE HELP!!!
thank you.
Click here to see answer by pizza(14) |
Question 48568: As isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. Show all your work.
A(1,1) B(1,5) C(5,3)
I know that it is isosceles but i dont know how to find the length of the sides?
Click here to see answer by Earlsdon(4900) |
Question 48583: HELP i have two triangles ans the order from the bottom left corner is A the point is B and the right corner C inbetween the B AND C line there is the number 18 and between A AND C there is an x the other one is a triangle same order but D E AND F between E AND F There is a 12 and between D AND F there is a 6 . . WHAT DO THEY WANT?? the directions say triangle ABC~ triangle DEF and solve for x
Click here to see answer by venugopalramana(3286) |
Question 48762: Sir, This is quenstion on congruence of Triangles.ABC is a triangle in which AD is the bisector of angle A. If AD is perpendicular to BC, show that triangle ABC is Isoscele. Give reasons.
A
/\
/: \
/ : \
/ : \
/ : \
B/----D-----\C
I tried it like this.
In triangle ABD and triangle ACD
(i) AD=DA (Common side)
(ii) Angle BAD=Angle CAD (by CPCT)
(iii)Angle ADB=Angle ADC=90 degree because AD Perpendicular to BC
Therefore triange ABD is congruent to triangle ACD by ASA congruency
Hence AB=AC and Triangle ABC is isoscele.
But I M not confident with my solution. PL. help me.
Click here to see answer by longjonsilver(2297)  |
Question 49041This question is from textbook 
: sir, find the length of a side of a square, given the following lengths of the diagonal:
1) 16
2) 20
3) 4 square root of 2
pls help me bec, i dont really understand...
This question is from textbook
Click here to see answer by venugopalramana(3286) |
Question 49041This question is from textbook
: sir, find the length of a side of a square, given the following lengths of the diagonal:
1) 16
2) 20
3) 4 square root of 2
pls help me bec, i dont really understand...
This question is from textbook
Click here to see answer by Nate(3495) |
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