Question

please find the all type of triangle explain.? brainliest questions

Answer 1

equilateral triangle, isosceles triangle

Answer 2

Hlo friend.. Cutiepie Here..

Here is ur answer :

Introduction :

TRIANGLE

A plane figure closed by 3 intersecting lines is called a triangle. Here "tri" means " Three" . A triangle has three sides, three vertices and three angles.


The sum of all the internal angles of a triangle is 180.

Area of triangle = 1/2 × base × height

Perimeter of triangle is equal to the sum of its three sides.


There are SIX types of triangle :

1. SCALENE TRIANGLE

A triangle having all sides of different length and have different angles.

Let the sides of triangle be a, b, c

We can find the area of Scalene triangle with the help of heron ' s formula .

Formula is
$\sqrt{s(s - a)(s - b)(s - c)}$


S is semi Perimeter here

S = a + b + c / 2


2. EQUILATERAL TRIANGLE

An equilateral triangle has all sides equal and all angles equal.

Let the side of equilateral triangle be a.

Area of equilateral triangle =
$\frac{ \sqrt{3} }{4} {a}^{2}$


3. ISOSCELES TRIANGLE

An isosceles triangle has two equal sides and 2 equal.

Let the length of equal sides be b and length of third side is a

Area of isosceles triangle =

$\frac{a \sqrt{ {4b}^{2} - {a}^{2} } }{4}$


4. RIGHT ANGLED TRIANGLE

A right angle triangle has one right angle

Right angle is equal to 90°.



5. ACUTE TRIANGLE

An acute triangle has three acute angles.

Acute angles means angle less than 90°.



6. OBTUSE TRIANGLE

An obtuse angle has one obtuse angle.

Obtuse angle means angle more than 90°.



HOPE IT HELPS YOU...