Math, asked by nawatheanand, 2 months ago

फाइंड एरिया ऑफ़ ट्रायंगल एबीसी एबीसी कॉल टू 45 सेंटीमीटर बीसी इज इक्वल टू 39 सेंटीमीटर इज इक्वल टू 42 ​

Answers

Answered by sangitadhandekar12
0

Answer:

In △ABC, by Heron's formula we have

a=39cm,b=45cm and c=42cm

⇒s=

2

a+b+c

=

2

39+42+45

=63cm

∴ Area of ΔABC=

s(s−a)(s−b)(s−c)

=

63(63−39)(63−42)(63−45)

=

63×24×21×18

=756cm

2

Given both the triangle and parallelogram have equal areas.

A(□BCED)=base×height

⇒45×h=756cm

2

⇒h=16.8cm

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