Find area of two and three?

How do you find the area of a trapezoid using the area of a triangle?

You have to cut the trapezoid into three shapes. The three shapes will be two triangles and one rectangle or square. You have to find the area of these three shapes and then add all of the three areas up to find the area of the trapezoid.

To find the surface area of a three dimensional figure what do you have to find?

You need to find the area of each two dimensional surface on the figure. Do you have a specific figure in mind?

What is the formula of a rectang le to find the width?

You need more information. there are three components to a rectangle, Length, Width, and Area. you need two of the three to find the third

How do you find area of triangle in three semicircles?

divide it by three, tha area

How do you find the area with two lenghts and two height?

add them and find the area

How do you find the area of a math problem with three numbers?

You take the two numbers that you need which is the width and the height then you multiply the width and height and multiply the two numbers to find the product and that's your answer! :)

How do you find the perpendicular distance in a triangle?

The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.

How does knowing the area of two-dimensional figures help you find the surface area of a three-dimensional shape?

The surface area of the 3-D figure will be the total of the areas of the 2-D figures.

To find the surface area of the three dimensional figure you must find the perimeter of a face and then multiply by the height?

NO. This is the way to get the volume of a prism, not the surface area of any three-dimensional figure. To find the surface area of a three-dimensional figure, you must find the area of each of its faces and then add the side-areas together.

Is it true that to find the surface area of a three dimensional figure you must find the area of each of its faces and then add them together?

TRUE: To find the surface area of a three dimensional figure, you must find the area of each of its faces and then add them together.

What do you have to know to find the area of a parallelogram?

divide the parralelogram into three sections--a rectangle and two triangles and find the area of each (triangle is 1/2 base x height) (rectangle is length times width

How do i find the total area of pyramid?

first find the area of the base. then multiply it by the height and divide it by three.