You measure the necessary parameters. It may be the radius/diameter or the length of a side of a regular polygon, or the lengths of sides and angles of an irregular polygon, and even more complicated measures for odder shapes. Use this information with appropriate formulae to calculated the base area.
If the figure is a rectangle, the area is 60. If the figure is a triangle, the area is 30.
find the area of triangles(reflecting surfaces) and also the area of rectangle or square(base)and find the sum of both.
L=PH L=PH Lateral Area= (Perimeter of the base)(the height of the figure)
You can always find the area of a triangle - by dividing the length of the base by 2, then multiplying that figure by the height.
48in2. To find the area of any triangle - you divide the length of the base by 2, then multiply that figure by the height.
The area of ANY triangle is base x height. The height must be measured perpendicular to the base. In the case of an isosceles triangle, if you know only the length of the sides, you can figure out the height by Pythagoras' Theorem.
Area of plane figure
Lateral Area= p times h p= perimeter of the base h=height of the figure Surface Area= Lateral Area + 2 times (B) B= Area of base
The remaining figure is the are of polygons that bounded by three dimensional figure .
The volume V of a prism is the area of its base Btimes its height h.
To find the area of a shaded parallelogram, you can use the formula ( \text{Area} = \text{base} \times \text{height} ). Measure the length of the base and the perpendicular height from the base to the opposite side. Multiply these two measurements to obtain the area of the parallelogram. If the shaded area is part of a larger figure, ensure you only calculate the area of the shaded section.
With the area of the base known, you can back figure to the radius. But unless you know the cylinder's volume, or are told that it's height is equal to the radius or diameter or circumference of the base, there's no way to find the height short of measuring it. To find the radius, you take the area of the base and divide it by pi. The resulting dividend is r2. Find the square root of the dividend, and you have the radius.