Geometric Formulas: area of triangle, given altitude, base

[TorieAndrews]

Geometry-

1. Find the area of a triangle whose altitude is 7 feet and whose base is 22 feet.

2. Flower Bed- Find the area of a circular flower bed whose diameter is 6 meters.

 

[jwpaine]

Show the work you have done thus far, so that we can help you.

We don't do people's homework here!

 

[stapel]

1. Find the area of a triangle whose altitude is 7 feet and whose base is 22 feet.

2. Flower Bed- Find the area of a circular flower bed whose diameter is 6 meters.

1) Plug the base length and height into the formula for the area A of a triangle with base b and height h, and simplify to find the answer.

2) Plug the radius into the formula for the area A of a circle with radius r, and simplify to find the answer.

Tip: If you haven't yet memorized these formulas, do so now! :wink:

Eliz.

 

[TorieAndrews]

1.a=7(ft)
b=22 (ft)
a+b
7+22=29

On number 2 I'm not sure how to work this problem out. I'm in school online, and some problems are not work out as of in a classroom to my understanding, so that is way I ask. Can you give me an example, to see how to work it out. This way I can understand how to do the problem.

 

[Deleted member 4993]

2. Flower Bed- Find the area of a circular flower bed whose diameter is 6 meters.

area of circle = [pi] * r^2 = [pi] * 3^2 = 9 * [pi]

 

[Denis]

1.a=7(ft)
b=22 (ft)
a+b
7+22=29

Torie, wether you're in a classroom or learning on-line (as you are),
there is nothing preventing you from showing some initiative, like
LOOK UP (using google) the formula for the area of a triangle;
you will then see that the formula is : (base times height) / 2

So with your problem, area is: 22 * 7 / 2 = ???

So start showing some initiative: it's the only way to really learn!