Slide 1 : AREA OF TRIANGLES
Area of triangles : Area of triangles Find the area of the following triangles
Slide 3 : Find BC, if the area of the triangle ABC is 36 cm2and the height AD is3 cm D
Slide 4 : Find the area of the equilateral triangles
having sides as
1)8cm
2)10m
3)12m
Slide 5 : 1)Find the side of the equilateral triangle
whose area is
a)100?3
b)160?3
Slide 6 : Find the area of the triangle if the sides of the triangle are
1)26cm,28cm,30cm
2)48m,73m,55m
Slide 7 : An isosceles triangle has perimeter 30cm and each of the equal sides is 12 cm. Find
the area of the triangle.
Slide 8 : Find the area of the triangle with sides 21m,20m,13m.Find the length of the altitude to the side of length 21m
Slide 9 : Sanya has a piece of land which is in the shape of a rhombus . She wants her one daughter and one son to work on the land and produce different crops. She divided the land in two equal parts. If the perimeter of the land is 400 m and one of the diagonals is 160 m, how much area each of them will get for their crops?
Slide 10 : An umbrella is made by stitching 10 triangular pieces of cloth of two different colours each piece measuring 20 cm, 50 cm and 50 cm. How much cloth of each co lour is required for the umbrella?
Slide 11 : A floral design on a floor is made up of 16 tiles which are triangular, the sides of the triangle being 9 cm, 28 cm and 35 cm Find the cost of polishing the tiles at the rate of 50p per cm2.