Question

In the marriage of Raj’s brother Rajesh, a conical tent is made by stitching 12 triangular pieces of cloth of two different colors red and white alternately, each piece measuring 10 cm, 20 cm and 20 cm. a. Write the formula to find the area of triangle.
b. Find the semi-perimeter of one red color triangle. (i) 35 cm (ii) 30 cm (iii) 25 cm (iv) 20 cm​

Answer 1

Step-by-step explanation:

$\sqrt{s \: (s - a) \: (s - b) \: \:(s - c)}$

this is answer for a

semi perimeter is

$a + b + c \div 2$

10+20+20/2

50/2

25is ans

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