Question

find the base of a triangle whose height is 3cm and area is 7.2 sq.cm. please answer in detail​

Answer 1

Step-by-step explanation:

Area of =1/2*base *height

7.2=1/2*3*base

14.4=3*base

14.4/3=base

4.8 =base

Answer 2

Consider a triangle ABC, in which D is the midpoint of base BC.

Here, given that Height of the triangle is 3cm it means AD will be 3cm and area of the triangle is given as 7.2cm² it means ar ∆ABC is equal to 7.2cm².

As we know that Area of a triangle is ½ × base × height

Put the values in the formula

Now, according to question

➝ Area of the triangle = ½ base × height

➝ 7.2 = ½ × base × 3

➝ 7.2 = 3/2 × base

➝ 7.2 × 2/3 = base

➝ base = 14.4/3

➝ base = 4.8cm

•°• base of the triangle ABC is 4.8cm.