Questions on Geometry: Triangles answered by real tutors!

Tutors Answer Your Questions about Triangles (FREE)

Question 1166173: Find the perimeter of a triangle in which each side is 4 2/3 ft.
Click here to see answer by ikleyn(52747)

Question 1166197: An isosceles triangle ABC has its vertices on a circle. If AB| = 13 cm, |BC| = 13 cm and. = |AC| = 10 cm, calculate =
a the height BM of the triangle, b the radius of the circle, to the nearest whole cm.
Click here to see answer by ikleyn(52747)

Question 1166324: If triangle ABC is isosceles, B is the vertex angle, AB = 20x + 10, BC = 13x + 66, and AC= 25x, find x and the measure of each side of the triangle
Click here to see answer by ikleyn(52747)

Question 1166350: In ^ABC, the measure of OB is 13 more than the measure of OA, and the measure of OC is 9 less than twice the measure of OA. Find the measure of each angle in ^ABC. [Only an algebraic solution will be accepted.]
Click here to see answer by ikleyn(52747)

Question 1166662: Four angles of a pentagon are equal and the fifth is 60°. Find the equal
angles and show that two sides of the pentagon Are parallel.
Click here to see answer by Edwin McCravy(20054)

Question 1166711: in triangle DEF, m angle E is three times m angle D, and m angle F is 9 less than m angle E. what is the measure of each angle?

Click here to see answer by ikleyn(52747)

Question 1166837: My problem is this:
I know the the height (a) is 42'
I know the hypotenuse (c) is 45 degrees
what is the length (c)
What is the length of the adjacent (b) side

Click here to see answer by josgarithmetic(39613)

Question 1166897: find the measures of the sides of triangle abc with verticies A(1,3), B(5,-2), and C(0,-4). classify the triagnle by its sides
Click here to see answer by dkppathak(439)

Question 1166927: In the triangle to the right, segments AB and AC are trisected, and D is the midpoint of BC. If the area of triangle ABC is 630 cm*2, then the area of the section marked x, in cm*2 is:
A) 105
B) 175
C) 150
D) 185
E) 170
https://imageshack.com/i/pnLdNNl3j
Click here to see answer by greenestamps(13195)

Question 1167007: What is the measure of the other acute angle of a right triangle if one acute angle has a measure of 53?

Click here to see answer by solver91311(24713)

Question 1167410: The sides of a triangle are x,y and √x^2+y^2 +xy. Find the greatest angle
Click here to see answer by Alan3354(69443)

Question 1167410: The sides of a triangle are x,y and √x^2+y^2 +xy. Find the greatest angle
Click here to see answer by ikleyn(52747)

Question 1167692: IN Triangle ABC, AB=8, BC=5, and Angle C = 30 degrees. What is sin A?
Click here to see answer by rothauserc(4718)

Question 1168084: Equilateral triangle ABC has point E on altitude AD, 1/3 of the distance from D to A. If each side of the triangle is 3 cm, the sum of the perpendiculars from E to the sides of the triangles is, in cm
A) 2 √ 3 /3
B) 3 √ 3 /3
C) 3 √ 3
D) 4 √ 3 /3
E) 2 √ 3
https://imageshack.com/i/pmUMJPTuj
Click here to see answer by ikleyn(52747)

Question 1168087: Triangle ABC is a right triangle with legs of 5 cm and 12 cm. Find the length of line DE, in cm.
A) 2 1/2
B) 3
C) 2 11/24
D) 2 17/24
E) 2
https://imageshack.com/i/pocDq6y6j
Click here to see answer by josgarithmetic(39613)

Question 1168353: △LMN is an isosceles triangle, with LM=LN, LM=3x−2, LN=2x+1, and MN=5x−2.

Click here to see answer by ikleyn(52747)

Question 1168552: An isosceles triangle has an angle that measures 80°. Which other angles could be in that isosceles triangle? Choose all that apply.
Click here to see answer by dkppathak(439)

Question 1168934: Given that PQ is parallel to RS and PQ is congruent to RS show that:
PR is congruent to QS.
I have no clue how to do this homework can someone help me?
Click here to see answer by ikleyn(52747)

Question 1168923: Pls Helps: https://docs.google.com/document/d/1gLNdyAt9LVyVp89TLvkZ6qIpiF5fJPZYRHijTQHUwGI/edit?usp=sharing
Click here to see answer by Solver92311(821)

Question 1168896: Pls Help: https://docs.google.com/document/d/1gLNdyAt9LVyVp89TLvkZ6qIpiF5fJPZYRHijTQHUwGI/edit?usp=sharing
Click here to see answer by Solver92311(821)

Question 1169201: Help for exam practice!
Using a scale diagram , sketch and determine the resultant vector
a) 7m ( down) and 9 m (left)
b) 6km (N55degreesW) and 4 km (E35degreesS)
a) I did try these questions but the teacher put up the wrong answers and now i am really confused if i did it right, first one i put on a diagram and solved for r using pyth theorem and got 11.4m
b) i used cosine law and i got 7.2 km
Click here to see answer by Solver92311(821)

Question 1169194: Prove that if a, b, and c are the sides of a triangle, then so are sqrt(a), sqrt(b), and sqrt(c). What about a^2, b^2, and c^2?
Click here to see answer by ikleyn(52747)

Question 1169192: How many different obtuse triangles with integer side lengths and a perimeter of 20 can we draw such that no two of them are congruent?
Click here to see answer by greenestamps(13195)

Question 1169296: The coordinates of the base of a right triangle are (4, 8) and (-6, 8). What is the base length of the triangle?
Click here to see answer by Alan3354(69443)

Question 1169297: The hypotenuse of a right triangle is 2 cm longer than one leg, The other leg has length 8 cm. Find the length of the hypotenuse.
Click here to see answer by ikleyn(52747)

Question 1169362: A triangle has two sides of length 15 and 12. What is the largest possible whole-number length for the third side?

Click here to see answer by ikleyn(52747)

Question 1169382: What is the classification of a triangle with vertices A(-3,-1), B(-2,2), C(3,1) by its sides ?
Click here to see answer by Boreal(15235)

Question 1169465: The endpoints of two segments are given.Find each segment length and tell whether the segments are congruent
_
Jk: J(-4,13), k(-10,6) and
_
LM: L(2,-11), M(-1,-2)
Click here to see answer by Boreal(15235)

Question 1169759: a triangle has sides that measure 6cm, 8cm, and 10cm. find the exact volume of the solid of revolution formed when the triangle is revolved about the side of the length 8cm.
Click here to see answer by ikleyn(52747)

Question 1169757: a triangle has sides that measure 6cm, 8cm, and 10cm. find the exact volume the solid of revolutions formed when the triangle is revolved about the side of length 8cm,
Click here to see answer by ikleyn(52747)

Question 1169766: The angles of a quadrilateral, taken in ordet are x, 5x, 4x and 2x. Find these angles. Draw a rough sketch of the quadrilateral. What kind of quadrilateral is it?
Click here to see answer by josgarithmetic(39613)

Question 1169767: The angles of a quadrilateral,taken are x, 5x,4x and 2x. Find these angles. Draw a rough sketch of the quadrilateral.what kind of quadrilateral is it?
Click here to see answer by Solver92311(821)

Question 1169812: In triangle ABC, angle B=67° and angle C=46° prove that line CA=line CB
Click here to see answer by ikleyn(52747)

Question 1170065: Find the area of the shaded region in an equilateral triangle with an inscribed circle of a radius 2.8km, and the base of the triangle being 10km, and the height is 7km. Find the area of the shaded region. (The circle within the triangle is not shaded; the entire triangle is shaded even though the circle is in it.)
Click here to see answer by greenestamps(13195)

Question 1170118: Give the range for the length of the third side of a triangle if the given two lengths are 8 centimeters and 15 centimeters.
Click here to see answer by math_helper(2461)

Question 1170117: Give the range for the length of the third side of a triangle if the given two lengths are 8 centimeters and 15 centimeters.

Click here to see answer by ikleyn(52747)

Question 1170226: There are two similar scalene triangles.
Triangle A has a base of 19 cm, a shorter leg = 13 cm and a longer leg = 16 cm.
Triangle B has a shorter leg of 39 cm. What are the measurements in cm for the base and longer leg of Triangle B?

Click here to see answer by greenestamps(13195)

Question 1170312: △ D E F , m ∠ D = 2 x + 3 , m ∠ E = 5 x , a n d m ∠ F = 4 x + 1.

find the measure of
x
m ∠ D
m ∠ E
m ∠ F
Click here to see answer by Boreal(15235)

Question 1170312: △ D E F , m ∠ D = 2 x + 3 , m ∠ E = 5 x , a n d m ∠ F = 4 x + 1.

find the measure of
x
m ∠ D
m ∠ E
m ∠ F
Click here to see answer by MathLover1(20849)

Question 1170339: the area of a triangle is 36m2 the length of the base is twice the height find the length of the base of the triangle
Click here to see answer by Boreal(15235)

Question 1170372: given a=7 and b=25 find help me find the measure of angle b
Click here to see answer by Alan3354(69443)

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