Question

calculate the area of a triangle having the base of 5cm and height 9cm .express the result in SI unit. ​

Answer 1

Answer:

22.5

Explanation:

area of triangle= 1/2(base×height)

= 1/2(5×9)

=45/2

=22.5cm^2

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Answer 2

Given :-

Base of the triangle = 5 cm

Height of the triangle = 9 cm

To Find :-

The area of the triangle and express the result in SI unit.

Analysis :-

Here we are given with the base and height of the triangle.

In order to find the area of the triangle substitute the values accordingly such that base multiplied by height divided by two.

Solution :-

We know that,

• b = Base
• a = Area
• h = Height

Using the formula,

$\underline{\boxed{\sf Area \ of \ a \ triangle=\dfrac{1}{2} \times Base \times Height}}$

Given that,

Base (b) = 5 cm

Height (h) = 9 cm

Substituting their values,

⇒ a = 1/2 × 5 × 9

⇒ a = 1/2 × 45

⇒ a = 45/2

⇒ a = 22.5 cm²

Therefore, area of the triangle is 22.5 cm².