Question

Please Give me the formulas of

(1) SURFACE AREA OF CUBOID

(2) AREA OF TRIANGLE

(3) TOTAL SURFACE AREA OF CYLINDER

(4) AREA OF RHOMBUS

(5) AREA OF PARALLELOGRAM

(6) AREA OF RECTANGLE

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Answer 1

1. Answer:

1.A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

2.The most common formula for finding the area of a triangle is K = ½ bh, where K is the area of the triangle, b is the base of the triangle, and h is the height.

3.the formula for the total surface area is 2(pi)radius(height) + 2(pi)radius squared.

4.Area of a rhombus can be derived in 3 ways: Using diagonals – A = ½ × d1 × d2. Using Base and Height – A = b × h. Using trigonometry – A = b2 × Sin(a).

5.Multiply the length of the base × height b a s e × h e i g h t , and express the answer in square units.

6.Area of a Rectangle A = l × b

Answer 2

Answer:

$1.2(lb + bh + hl) \\ 2.sqrt{s(s - a)(s - b)(s - )c} \\ 3.2\pi r(r + h) \\ 4.½ × d1 × d2 \\ 5.A=bh \\ 6.a = l \times b$