Question

Base of a triangle is 18 and height is 10. Base of another triangle is 20 and height is 12, then the ratio of areas of these two triangles is 
3:4
9:16
4:3​

Answer 1

Answer:

3:4

Step-by-step explanation:

area of a triangle = 1/2 X base X height

triangle 1:

area= 1/2 18 10= 90

triangle 2 :

area= 1/2 20 12= 120

ratio of their areas= 90:120

3:4