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the area of a triangle varies jointly as the base and the altitude. if the base will doubled what changes may happen to the area?​

Sagot :

Step-by-step explanation:

Let area of triangle = A

base = b

altitude = a

Equation: A=kba

If b=2, A=6, a=3, then 6=k(2)(3). Simplifying it will become...

6=k6

1=k

If b=3, and a=5, then A=(1)(3)(5)=15.

Now, if b is doubled, then...

For example, b=4, A=6, a=3, then 6=k(4)(3)

6=k12

½=k

Back to the example, if b=6, and a=5, then A=½(6)(5), A=½(30)=15.

If you will look the answers, you will see that the area isn't changed, but the constant, k is halved.