A plane with ten edges as its sides is called

The kind of triangle which has two equal sides is

A. exterior angle

B. equilateral triangle

C. isosceles triangle

D. scalene triangle

The plane with six edges as its sides is called

A. quadrilateral

B. pentagon

C. hexagon

D. octagon

The type of polygon in which its all angles and sides are equal is classified as

A. regular octagon

B. regular hexagon

C. regular polygon

D. regular pentagon

A plane which is formed by three straight edges as its sides is called

A. triangle

B. quadrilateral

C. pentagon

D. hexagon

The right-angled triangle must have

A. four right angles

B. three right angles

C. one right angle

D. two right angles