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What shape is formed using 5 congruent triangles and has 5 vertices 5 angles 5 sides?
Wiki User
∙ 13y ago
pentagon
Wiki User
∙ 13y ago
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How many triangles can be formed with 5 vertices?
10 triangles....
What is the ratio of the height to the sides of a pentagon?
If the pentagon is a regular pentagon, then each of the central angles (formed by joinning the center with the vertices) is72⁰ (1/5 of 360⁰). So that 5 congruent isosceles triangle are formed, with base angles of 54⁰. If we draw the height, of these triangles (from the center to the sides of the pentagon), 10 congruent right triangles are formed. Let denote with: b the sides of the pentagon, and h the height. In one of the right triangles we have: tan 54⁰ = h/(b/2) tan 54⁰ = 2h/b 1.38 = 2h/b 2h = 1.38b h = (1.38/2)b h = .69b So that, h/b = .69b/b = .69
What is formed when two complementary angles are formed?
Complementary angles add up to 90 degrees. If congruent then: 45+45=90
How many different triangles can be formed using three vertices of a hexagon as vertices of a triangle?
30, its a combination. C(6,3) because there are six vertices of a hexagon and three vertices of a triangle
Name the type of special quadrilateral that will appear when you join two congruent equilateral triangles?
There are two types of quadrilaterals that are formed when two congruent equilateral triangles are joined. These shapes are rhombus and parallelogram.
How many triangles can be formed in a 15 sided polygon when one of its vertices is joined to the other vertices?
13 triangles will be formed
How many triangles can be formed in octagon using the vertices of the octagon as the vertices of triangle?
There are 48 triangles that can be formed because 6 triangles can be formed usin each point multiplied by 8.
How many triangles can be formed with 5 vertices?
10 triangles....
Triangles formed by joining the vertices of a decagon?
Eight triangles.
Why do complementary angles of launch result in the same projectile range?
It is a case of Trigonometry/Geometry. The two triangles formed by the angles and sides of artillery aiming are "Similar" (not congruent) since two angles and a side (base) are Similar. Because the Range of the projectile is 2x the base (which is congruent) of the triangles, the range MUST be the same.
What are four attributes of a rhombus?
1. Opposite angles congruent 2. All sides are congruent 3. The diagonals are perpendicular bisectors of each other 4. Diagonals bisect the angles NOTE: Four congruent right triangles are formed with the right angles It has all of the properties of a parallelogram and a kite
What 2 triangles are formed when split a parallelogram in half?
Two congruent triangles.
What figure is formed when you put two congruent triangles together?
Figure that are congruent are shapes are the same size and shape. So when two formed congruent triangles are both together they fit just right.
What kind of angles are pairs of opposite and congruent angles formed by intersecting lines?
Angles that are pairs of opposite and congruent lines formed by intersecting lines are intersections
Which types of angles are always congruent?
vertical angles are always congruent...they are two nonadjacent angles formed by intersecting lines. Vertical angles are congruent..or equal in measure
What quadirlateral is formed by 2 right scalene triangles?
If the triangles are congruent and you match the hypotenera the right way, you can get a rectangle. If the triangles are not congruent, you can't even necessarily get a quadrilateral.
What is the ratio of the height to the sides of a pentagon?
If the pentagon is a regular pentagon, then each of the central angles (formed by joinning the center with the vertices) is72⁰ (1/5 of 360⁰). So that 5 congruent isosceles triangle are formed, with base angles of 54⁰. If we draw the height, of these triangles (from the center to the sides of the pentagon), 10 congruent right triangles are formed. Let denote with: b the sides of the pentagon, and h the height. In one of the right triangles we have: tan 54⁰ = h/(b/2) tan 54⁰ = 2h/b 1.38 = 2h/b 2h = 1.38b h = (1.38/2)b h = .69b So that, h/b = .69b/b = .69
