**Area of a triangle : **

Area of a triangle can be calculated by multiplying base and and height or altitude by 1/2.

Formula :

**(1/2) x Base x Height**

Now let us see example problems to understand this topic.

**Example 1 :**

Find the area of the triangle having base 8 cm and altitude 4 cm.

**Solution :**

Area of triangle = (1/2) x Base x Height

Here base = 8 cm and height = 4 cm

= (1/2) x 8 x 4

= 4 x 4

= 16 cm²

**Example 2 :**

Find the area of the triangle having base 6 cm and perpendicular height 12 cm.

**Solution :**

Area of triangle = (1/2) x Base x Height

Here base = 6 cm and height = 12 cm

= (1/2) x 6 x 12

= 3 x 12

= 36 cm²

**Example 3 :**

Find the area of the triangle having base 12.5 cm and perpendicular height 10 cm.

**Solution :**

Area of triangle = (1/2) x Base x Height

Here base = 12.5 cm and height = 10 cm

= (1/2) x 12.5 x 10

= 12.5 x 5

= 62.5 cm²

**Example 4 :**

A triangle shaped pillow need to be covered by cloth. The base of the pillow is 15 cm and height is 12 cm. If the cost of 1 square cm cloth is $3 then what is the total cost of the cloth needed.

**Solution :**

Area of triangle shaped pillow = (1/2) x Base x Height

Here base = 15 cm and height = 12 cm

= (1/2) x 15 x 12

= 15 x 6

= 90 cm²

The cost of 1 square cm cloth = $ 3

The total cost = Area of pillow x Cost of 1 square cm cloth

= 90 x 3

= $270

Hence, the total cost required to cover the pillow is $ 270.

Related Topics

- Perimeter of sector
- practice questions with solution
- Length of arc
- Practice questions on length of arc
- Perimeter of square
- Perimeter of parallelogram
- Perimeter of rectangle
- Perimeter of triangle
- Area of a circle
- Area of Semicircle
- Area of Quadrant
- Area of sector
- Area of equilateral triangle
- Area of scalene triangle
- Area of square
- Area of rectangle
- Area of parallelogram
- Area of rhombus
- Area of trapezium
- Area of quadrilateral
- Area around circle
- Area of pathways

After having gone through the stuff given above, we hope that the students would have understood "Area of a triangle"

Apart from the stuff given above,
if you want to know more about "Area of a triangle", __please
click here.__

Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.

HTML Comment Box is loading comments...

**WORD PROBLEMS**

**HCF and LCM word problems**

**Word problems on simple equations **

**Word problems on linear equations **

**Word problems on quadratic equations**

**Area and perimeter word problems**

**Word problems on direct variation and inverse variation **

**Word problems on comparing rates**

**Converting customary units word problems **

**Converting metric units word problems**

**Word problems on simple interest**

**Word problems on compound interest**

**Word problems on types of angles **

**Complementary and supplementary angles word problems**

**Markup and markdown word problems **

**Word problems on mixed fractrions**

**One step equation word problems**

**Linear inequalities word problems**

**Ratio and proportion word problems**

**Word problems on sets and venn diagrams**

**Pythagorean theorem word problems**

**Percent of a number word problems**

**Word problems on constant speed**

**Word problems on average speed **

**Word problems on sum of the angles of a triangle is 180 degree**

**OTHER TOPICS **

**Time, speed and distance shortcuts**

**Ratio and proportion shortcuts**

**Domain and range of rational functions**

**Domain and range of rational functions with holes**

**Graphing rational functions with holes**

**Converting repeating decimals in to fractions**

**Decimal representation of rational numbers**

**Finding square root using long division**

**L.C.M method to solve time and work problems**

**Translating the word problems in to algebraic expressions**

**Remainder when 2 power 256 is divided by 17**

**Remainder when 17 power 23 is divided by 16**

**Sum of all three digit numbers divisible by 6**

**Sum of all three digit numbers divisible by 7**

**Sum of all three digit numbers divisible by 8**

**Sum of all three digit numbers formed using 1, 3, 4**

**Sum of all three four digit numbers formed with non zero digits**