Questions on Geometry: Triangles answered by real tutors!

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Question 810093: 15. Explain why x, 2x, and 3x cannot represent the lengths of the sides of a triangle.
Click here to see answer by richwmiller(17219)

Question 810093: 15. Explain why x, 2x, and 3x cannot represent the lengths of the sides of a triangle.
Click here to see answer by josmiceli(19441)

Question 810129: Can a triangle with sides 6cm, 3cm, and 9cm exist? Explain.

Click here to see answer by htmentor(1343)

Question 810260: the height of a triangle is 2 more than its base. if the hypotenuse is 10, find the dimensions of the triangle.
Click here to see answer by erica65404(394)

Question 810413: what is the height of an equilateral triangle if all three of it's sides are 24 inches?
Click here to see answer by JBarnum(2146)

Question 810504: ow many different isosceles triangles can one find that have sides that are whole number lengths
Click here to see answer by richwmiller(17219)

Question 810599: Find are of Triangle STU. It is a right triangle, I don't know how to do that on here. But the 'height' is missing, the hypotenuse is 12, and the base is 4. I did a^2 + 4^2 = 12^2 and get a^2 + 16=144
So 144-16=128
a^2=128
is which is 8. But 8*4 is 32 and the answer key says it's 16
Click here to see answer by Okeke_Christian(26)

Question 810544: There is a problem that asks: what is the value of y?

It is a hexagon with an angle that are 130 degrees, 75, 145, 115, 125. Then there is a exterior angle stick out of the side and it is y. I need the value of y.

Click here to see answer by Edwin McCravy(20054)

Question 810650: Is ΔABC with vertices A(�2, 3), B(2, 0), and C(�1, �4) a right triangle?
Please answer with:
ΔABC is a right triangle because or
ΔABC is not a right triangle.
Thank You.

Click here to see answer by mananth(16946)

Question 810679: in a right angle triangle smallest edge is 23 then find remaining two edges?
Click here to see answer by richwmiller(17219)

Question 810762: Assume that DABC below is an equilateral triangle. If CD^(perpendicular) AB and CD = 6, what is the area of DABC?
I can't draw the triangle but it's just a basic equilateral. CD is the height. AB is the base.
Click here to see answer by Edwin McCravy(20054)

Question 810817: The question says: Find the lenth of DB given DB is and altitude of angle ADC, the are of Angle ADC is 14 square units, and AC is 7.
how do I go about solving it?
Click here to see answer by Charles3475(23)

Question 810793: Find the value of x in triangle ABC.
The exterior angle at A is 184-9x, the angle of B is 4x-16, and the exterior angle at C is 2x+112.
Help!
Click here to see answer by Alan3354(69443)

Question 810865: the base of an isosceles triangle is 6m less than two times one side. The base is 24m. What is the area of the triangle?
Click here to see answer by richwmiller(17219)

Question 811281: An isoceles triangle has a side of 17 and a side of 35. What is the third side? Why?
Click here to see answer by josgarithmetic(39616)

Question 811281: An isoceles triangle has a side of 17 and a side of 35. What is the third side? Why?
Click here to see answer by richwmiller(17219)

Question 811281: An isoceles triangle has a side of 17 and a side of 35. What is the third side? Why?
Click here to see answer by MathTherapy(10551)

Question 811449: The perimeter of a right angled triangle having 24 cm base is 60 cm.find out the remaining two sides of the triangle.

Click here to see answer by richwmiller(17219)

Question 811575: If one leg of a triangle is. 6 inches and another leg is 10 inches. Find the hypotenuse
Click here to see answer by richwmiller(17219)

Question 811606: if a triangle has a perimeter of 12w+18 how much is each side
Click here to see answer by Alan3354(69443)

Question 811636: in an isosceles right teiangle the length of the hypotenuse is 10 units. how long is each leg?
Click here to see answer by brysca(112)

Question 811890: If the side of a triangle is 8, and the other is 18, what could the length of the third side be?
Click here to see answer by Alan3354(69443)

Question 812133: State if the three numbers can be the measures of the sides of a triangle 3,12,8
Click here to see answer by jim_thompson5910(35256)

Question 812125: MY PROBLEM: please help me solve this Question..... The perimeter of a triangle is 25 inches. The first side is 6 inches longer than the second side. The third side is 5 inches shorter than the second side. Find the length of each side.
MY EFFORT: 2L+b=25
L=6+b 2(6+b)+b=25
12+3b=25
-12 -12
3b= 13
B= ??????
Click here to see answer by erica65404(394)

Question 812166: How do I figure out if 2 lengths and a radical will form a triangle. I do not know the equation
To help my son.
Click here to see answer by richwmiller(17219)

Question 812445: If the question is: Calculate the length of the hypotenuse in a rigth-angled triangle that has adjacent sides of 6cm and 8cm?
Click here to see answer by richwmiller(17219)

Question 812453: Calculate the lenght of the hypotenuse in a right-angled triangle that has adjacent sides of:

B) 5cm and 12cm
Click here to see answer by richwmiller(17219)

Question 812458: Triangle PQR is a right-angled triangle with PR as the hypotenuse
Calculate the length of an adjacent side using the following information:

(C) PR=13cm and PQ=5cm
Click here to see answer by richwmiller(17219)

Question 812459: Triangle ABC has an area of 24 units squared. Point A is at coordinates (6,0) and point B is at coordinates (10,0). Where can point C be?
Click here to see answer by richwmiller(17219)

Question 812511: The perimeter of a triangle is 60 meters. The length of one side is 6 meters less than twice the length of the shortest side. The length of another side is three times the length of the shortest side. What are the lengths of the three sides?
Click here to see answer by richwmiller(17219)

Question 812701: A round piece of plate steel is 58 in. in diameter and has 35 - 1.5 in holes punched in it. How many in2 of material are left in the plate? Round your answer to two decimal places.
Click here to see answer by mananth(16946)

Question 812801: I have a right-angle triangle with a hypotenuse of 4.6cm and an area of 2cm. I need to calculate the lengths of the other two sides. I can see the product of the unknown sides is 4, but is there a formula to calculate the ratio of the sides and therefore the lengths?
Click here to see answer by richwmiller(17219)

Question 812864: If the legs of a right triangle are 24 cm and 18 cm long, find the measures of the acute angles?
Click here to see answer by ewatrrr(24785)

Question 813039: A ladder is leaning against a wall so that it makes an angle of 31 degrees with the wall.
If the base of the ladder is 4 feet from the base of the wall, how long is the ladder?
Click here to see answer by stanbon(75887)

Question 813385: in a 30-60-90 right scalene triangle with the short side being 1/3 what is the hypotenuse and long side?
Click here to see answer by ewatrrr(24785)

Question 813259: Hi there! Kindly guide me on following matter.
I am 5.9" tall and standing at ground. I am seeing a bird sitting at the top of the building (i don't know the height of building).
The distance between my eyes and bird is 35yards. (i determine it by using range finder).
But i don't know the distance between me and base of the building at the ground.
At which angle i am seeing that bird?
Your kind guidance in this regard will be highly appriciated.
Click here to see answer by ankor@dixie-net.com(22740)

Question 813454: In an isosceles triangle, a leg is 3 more than 1/3 of the base. If the perimeter is 31, find the length of each side.
Click here to see answer by ewatrrr(24785)

Question 813439: the area of a triangle garden is 25 feet squared. the base is twice the height. find the base and the height of the triangle
Click here to see answer by TimothyLamb(4379)

Question 813540: Three circles with centers A, B, and C are externally tangent to each other as shown in the figure. Lines EG and DG are tangent to circle C at point F and D and intersect at point G. If each circle has a diameter of 6 inches, find the length of DG and the area enclosed by lines FG and GD and arc FD.
Click here to see answer by Alan3354(69443)

Question 813681: The legs of a right triangle are 4 cm and x cm. The hypotenuse is (2x-1) cm. What is x? I know the answer to this question is 3 but what I can't figure out is how that solution was achieved. I tried setting up the equation like but got the wrong answer. Can you help?
Click here to see answer by Alan3354(69443)

Question 813687: The legs of a right triangle are 4 cm and x cm. The hypotenuse is (2x-1) cm. What is x? I know the answer to this question is 3 but what I can't figure out is how that solution was achieved. I tried setting up the equation like but got the wrong answer. Can you help?
Click here to see answer by stanbon(75887)

Question 813006: how to get the base of a triangle
Click here to see answer by tommyt3rd(5050)

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