Question

0.24. Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 48 cm.
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Answer 1

perimeter = 48

l= 18 cm

b= 10cm

area=??

We are finding area of triangle from heron's formula......

see continue in pic ✌️✌️

here is your answer......

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Answer 2

Answer:

the third side of triangle is 18+10+x=48

28+x=48

x=48-28

x=20cm

by herons formula of area of triangle

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

s=18+10+20/2

s=24

$\sqrt{24(24 - 18)(24 - 10)(24 - 20)}$

$\sqrt{24(6)(14)(4)}$

$\sqrt{8064}$