Question

the sides of a triangle 3 cm,5cm,6cm.what is it's area​

Answer 1

Answer:

let the breath is equal to 3cm

the width is equal to 5 cm

the height is equal to 6cm

= 3×5×6

=90 cm is the right answer

Hope it helps you ✌

Answer 2

Question :-

• The sides of a triangle 3 cm,5cm,6cm.what is it's area.

Given :-

• First Side = 3cm
• Second Side = 5cm
• Third Side = 6cm

To Find :-

• What is the Area of Triangle ?

Solution :-

$\quad {:} \longrightarrow \sf{\sf{s \: = \: \dfrac{a \: + \: b \: + \: c}{2} }}$

$\quad {:} \longrightarrow \sf{\sf{s \: = \: \dfrac{3 \: + \: 5 \: + \: 6}{2} }}$

$\quad {:} \longrightarrow \sf{\sf{s \: = \: \dfrac{14}{2} }}$

$\quad {:} \longrightarrow \sf{\bf{s \: = \: 7 }}$

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Using Heron's Formula :-

$\longmapsto \sf \boxed{\bf{\: Area = \: \sqrt{s(s - a) \: (s - b) \: (s - c)} }}$

$\longmapsto \sf {\sf{\: Area = \: \sqrt{7(7- 3) \: (7- 5) \: (7 - 6)} }}$

$\longmapsto \sf {\sf{\: Area = \: \sqrt{7 \times 4 \times 2 \: \times 1} }}$

$\longmapsto \sf {\sf{\: Area = \: \sqrt{56} }}$

$\longmapsto \sf {\bf{\: Area = \: 7.48 }}$

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So, the Area of Triangle is 7.48 $\sf cm^{2}$

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