Triangles and Rectangles Area and Perimeter

perimeter and area

by Nibedita K

​perimeter

​to find perimeter we need to add the length of all the sides of the figure

​area

• ​square-sidexside

​area

• ​rectangle-lengthxbreadth

Multiple Choice

find area of this rectangle-length=3m,breadth=2m

• 5

• 4

• 3

• 2

• 6

Multiple Choice

find area of this square-length=2m,breadth=5m

• 101m

• 19m

• 3m

• 10m

• 12m

​triangles

​triangles means three angles.there are three types of triangle by sides.

​if all sides are equal,it is a equilateral triangle.

​if two sides are equal,it is a isosceles triangle.

​if no sides are equal,it is a scalene triangle.

​there are three types of triangle by angles.

​if all angles are acute,it is a acute triangle.

​if one angle is right,it is a right-angled triangle.

​if one angle is obtuse,it is a obtuse-angled triangle.

Multiple Choice

identify this traingle-90*,12*,78*,2m,2m,2m

• right,isosceles

• right,equilateral

• obtuse,equilateral

• acute,equilateral

• right,scalene

​bye bye

​hope you like this content guys.goodbye.bye bye.