FINDING THE AREA OF A TRIANGLE

About "Finding the area of a triangle"

Finding the area of a triangle :

The area A of a triangle is half the product of the length of its base b and its height h. Area of a triangle = (1/2) x b x h

here "b" and "h" are base and height of the triangle respectively.

Example 1 :

Find the area of the triangle given below Solution :

Area of the triangle  = (1/2) x b x h

b =  20 m and h = 8 m

=  (1/2) x 20 x 8

=  10 x 8 =  80 square meter

Example 2 :

Find the area of the triangle given below Area of the triangle  = (1/2) x b x h

b =  8.5 inches and h = 14 inches

=  (1/2) x 8.5 x 14

=  8.5 x 7 =  59.5 square inches

Example 3 :

What is the area of a triangle that has a base of 15 ¼ inches and a height of 18 in.?

Solution :

base of the triangle = 15 ¼ inches

height of the triangle = 18 inches

Area of the triangle = (1/2) x b x h

=  (1/2) x 15 ¼ x 18

=  (61/4) x 9  ==> 137.25 square inches

Example 4 :

A triangular plot of land has the dimensions shown in the diagram. What is the area of the land? Solution :

base of the triangle = 30 km

height of the triangle = 20 km

Area of the triangle = (1/2) x 30 x 20

=  15 x 20 = 300 km²

Example 5 :

A triangular plot of land has the dimensions shown in the diagram. What is the area of the land? Solution :

base of the triangular land = 32 ft

height of the triangular land = 18 ft

Area of the land = (1/2) x 32 x 18

=  16 x 18 = 288 square ft

Example 6 :

A right triangle has legs that are 11 in. and 13 in. long. What is the area of the triangle?

Solution :

base = 11 inches and height = 13 inches

Area of the the right triangle = (1/2) x 11 x 13

=  143/2 = 71.5 square inches

Related topics

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

Apart from the stuff given above, if you want to know more about "Finding the 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.

You can also visit our following web pages on different stuff in math.

WORD PROBLEMS

Word problems on simple equations

Word problems on linear equations

Word problems on quadratic equations

Algebra word problems

Word problems on trains

Area and perimeter word problems

Word problems on direct variation and inverse variation

Word problems on unit price

Word problems on unit rate

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

Double facts word problems

Trigonometry word problems

Percentage word problems

Profit and loss word problems

Markup and markdown word problems

Decimal word problems

Word problems on fractions

Word problems on mixed fractrions

One step equation word problems

Linear inequalities word problems

Ratio and proportion word problems

Time and work word problems

Word problems on sets and venn diagrams

Word problems on ages

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

Profit and loss shortcuts

Percentage shortcuts

Times table shortcuts

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

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

Sum of all three four digit numbers formed using 0, 1, 2, 3

Sum of all three four digit numbers formed using 1, 2, 5, 6 