sasisrichandan sasisrichandan

28-06-2020
Mathematics

contestada

find the area of triangle two sides of which are 8cm and 11cm and the perimeter is 32cm with Herons formula

Respuesta :

28-06-2020

Answer:

8√30

Step-by-step explanation:

The length of the third side is 32 - 8 - 11 = 13. s (which is half of the perimeter) is 32 / 2 = 16 so the answer is:

√s(s-a)(s-b)(s-c) = √16 * (16 - 8) * (16 - 11) * (16 - 13) = √16 * 8 * 5 * 3 = √1920 = 8√30

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