Question

Base of a triangle is 18 and height is 15. Base of another triangle is 10 and height is 6. Find the ratio of
areas of these triangles​

Answer 1

Answer:

area of 1st TRIANGLE IS 1/2*base *height

base =18 and height=15

now area = 1/2*18*15

135 sq. unit

now

area of 2nd TRIANGLE IS 1/2*base *height

base= 10 and height= 6

now area= 1/2*10*6

30 sq. units

ratio of

areas of these triangles= 135:30

9:2 answer

Answer 2

Given :

• The Base and height of one triangle = 18 and 15
• The Base and height of another triangle = 10 and 6

To find :

• ratio of  areas of these triangles​

Solution :

⇒ Let's first, find out the Area of Triangle.

Area of the Triangle = 1/2 × b × h

                                  = 1/2 × 18 × 15

                                  = 1/2 × 270

                                  = 1 × 270/2

                                  = 270/2

                                  = 135

⇒ Next, let's find out the Area of another Triangle.

Area of the Triangle = 1/2 × b × h

                                  = 1/2 × 10 × 6

                                  = 1/2 × 60

                                  = 1 × 60/2

                                  = 60/2

                                  = 30

⇒ Now, since, we have found the Area, we have to now find the ratio.

Ratio = Area of one Triangle/Area of two Triangle

         = 135/30

         = 135 ÷ 5/30 ÷ 5

         = 27 ÷ 3/6 ÷ 3

         = 9/2

         = 9 : 2

Therefore, the ratio of the areas of these triangles is 9 : 2.