Question

find the area in square centimeters of the triangle whose base and altitude are as follows a) base 15cm, altitude - 8cm , b) base 1.5m, altitude 0.8m ​

Answer 1

Answer :-

• The area of triangle is 60cm².
• The area of triangle is 6000cm².

Step-by-step explanation :

To Find :-

• The area of triangle in centimetre square

Solution:

Formula used :-

• Area of triangle = 1/2 × base × height,

According the question,

• Base = 15cm and Altitude = 8cm

As we know that,

Area of triangle = 1/2 × base × height, therefore

=> Area = 1/2 × 15 × 8

=> Area = 1 × 15 × 4

=> Area = 15 × 4

=> Area = 60

The area of triangle is 60cm².

• Base = 1.5m and Altitude = 0.8m

First we need to convert 1.5m and 0.8m to centimetres,

=> 1.5m = 150cm

=> 0.8m = 80cm

Now, As we know that,

Area of triangle = 1/2 × base × height, therefore,

=> Area = 1/2 × 150 × 80

=> Area = 1 × 150 × 40

=> Area = 6000

The area of triangle is 6000cm².

Answer 2

Solution A :-

Given :

• Base of the Triangle = 15cm
• Height of the Triangle = 8cm

To Find :

• Area of Triangle

Solution :

➞ Area of Triangle = ½ × Base × Height

➞ Area of Triangle = ½ × 15 × 8

➞ Area of Triangle = 15 × 4

➞ Area of Triangle = 60cm²

Therefore, Area of the Triangle is 60cm²

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Solution B :-

Given :

• Base of the Triangle = 1.5m = 150cm
• Height of the Triangle = 0.8m = 80cm

To Find :

• Area of Triangle

Solution :

➞ Area of Triangle = ½ × Base × Height

➞ Area of Triangle = ½ × 150 × 80

➞ Area of Triangle = 150 × 40

➞ Area of Triangle = 600cm²

Therefore, Area of the Triangle is 600cm²

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