Question

Hey guys please help ​

Answer 1

7.98 m

Explanation:

Answer 2

`7.98 \:m`

Explanation:

Area of a triangle is base times height divided by 2.

`A= (bh)/(2)`

`69.6= (b * 17.45)/(2)`

`69.6 * 2= b * 17.45`

`139.2=b * 17.45`

`(17.45b)/(17.45)=(139.2)/(17.45)`

`b=(2784)/(349)`

`b=7.97707`

The appropriate unit is meters.