Question

provide me what is the formula for triangle what is the formula for area of circle what is the formula for circumference of circle what is the formula for perimeter of rectangle what is the formula for area of rectangle

Answer 1

⭕Circle:---

➡Area = Π × r²

➡Circumference = 2 × Π × r

✨r = radius of circle.

⭕Rectangle :---

➡Area = length × breadth

➡Perimeter = 2(length + breadth )

⭕Traingle :---

➡Area=1/2 × base × height

Or

✨For any traingle ⤵

➡√s(s-a)(s-b)(s-c)

Or,

in co-ordinate system,

= $1/2[X_1(y_3 - y_1) + X_2 (y_2 -y_1) + X_3 (y_2 - y_3)$

➡perimeter = sumof all sides.

Answer 2

Solution :

✏ Formula of Triangle = 1 /2 × Base × Height


✏ Area of Circle = πr²


✏ Formula of Circumference of Circle = 2πr


✏ Perimeter of Rectangle = 2(Length + Breadth)


✏ Area of Rectangle = Length × Breadth


✏ Area of Trapezium = 1/2 × Sum of Parallel Sides × Height


✏ Perimeter of Semicircle = 2r + πr


✏ Area of Square = (Side)²