In a triangle `a= 2b` and `A =3B` .Mention which of the following is true? A.) The triangle is equilateral B.)The triangle is isosceles C.) The triangle is right angled D.) The existence of such a triangle is not possible

In a right-angled triangle ABC, if angle B = 90°, then which of the following is true?

Which of the following is true? (A) Triangle is a polygon. (B) An isosceles triangle can be obtuse. (C) All scalene triangles are acute.

The angles A, B, C of a triangle ABC satisfy 4cosAcosB + sin2A + sin2B + sin2C = 4, Then which of the following statements is/are correct? (1) The triangle ABC is right angled (2) The triangle ABC is isosceles (3) The triangle ABC is neither isosceles nor right angled (4) The triangle ABC is equilateral

If a cosA=b cos B , then prove that either the triangle is isosceles or right triangle.

Can an acute-angled triangled be a. and equilateral, b. an isosceles, and c. a scalene triangle ?

The median of a triangle divides it into two congruent triangle (b) isosceles triangles right triangles (d) triangles of equal areas

A triangle whose all sides are equal is called an equilateral triangle (b) an acute triangle a right triangle (d) an isosceles triangle

Which of the following has an infinite number of lines of symmetry? (a) Equilateral triangle (b) Isosceles triangle (c) Regular hexagon (d) Circle

A(-4,0),B(4,0) and C(0,3) are the vertices of _- a)an Equilateral triangle b)an Isosceles triangle c)a Right angled triangle d)a Scalane triangle

A triangle whose all sides are equal is called (a) an equilateral triangle (b) an acute triangle (c) a right triangle (d) an isosceles triangle