Question

if the base of a triangle is doubled and the corresponding altitude is tripled ..find the ratio of the new area to the previous area

Answer 1

Hello Dear!!!  : )
Here Is The Answer:
Let The Base Be 12 cm And Corresponding Altitude Be 6 cm
So, The Previous Area = 1 / 2 x b x h
                                     = 1 / 2 x 12 x 6
                                     = 12 x 6 / 2
                                     = 72 / 2
                                     = 36 cm^2
Doubled Base => 12 x 2 = 36 cm
Tripled Altitude => 6 x 3 = 18 cm
So, The New Area = 1 / 2 x 36 x 18
                              = 36 x 18 / 2
                              = 324 cm^2
Ratio => 324 : 36
         => 9 : 1
Hope It Helps You!!!
Have A Nice Day!!!  ^_^

Answer 2

Answer:

6:1

Step-by-step explanation:

IG SO I AM NOT REALLY SURE