Question

find the area of a triangle whose base is 12 cm and height is 14 cm​

Answer 1

Answer:

Area= 84.....

Step-by-step explanation:

A= h b/2

Answer 2

Answer:

Given: The sides 12 cm and 5 cm

To find: Area of triangle.

Solution:

Now we have given that base is 12 cm and height is 5 cm​.

So by Pythagoras theorem, we have:

               hypotenuse = √(base² + height²)

               hypotenuse = √12² + 5²

               hypotenuse = √144 + 25

               hypotenuse = √169

               hypotenuse = 13 cm

Now s = a + b + c / 2 = 5 + 12 + 13 / 2

               s = 15

So area of triangle using herons formula is:

               Area = √ s x (s - a) x (s - b) x (s - c)

               Area = √ 15 x (10) x (3) x (2)

               Area = √ 150 x 6

               Area = √ 900

               Area = 30 cm²

Answer:

           So the area of right angled triangle is 30 cm².

Step-by-step explanation:

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