Question

sides of a triangle are20 cm, 50 cm and 50 cm. Find its area

Answer 1

Given: The sides of the triangle are 20cm, 50cm and 50cm.

To find: Its area.

Answer:

Area of a triangle (Using Heron's formula) = √s(s - a)(s - b)(s - c)

Let us take a as 20cm, b as 50cm and c as 50cm.

a + b + c = Perimeter

20 + 50 + 50 = 120cm

s = a + b + c/2

s = 120/2

s = 60cm

s - a = 60 - 20 = 40cm

s - b = 60 - 50 = 10cm

s - c = 60 - 50 = 10cm

Area of a triangle: √s(s - a)(s - b)(s - c)

= √60*40*10*10

= √3*2*10*2*2*10*10*10

= 10*10*2√3*2

= 200√6cm^2

Hope it helps :)

Answer 2

Answer:

hlo dear friend here is ur answer

Step-by-step explanation:

perimeter =120

s=60

area=√s(s-a)(s-b)(s-c

=√60(60-50)(60-50)(60-20)

=√60*10*10*40

=√2*3*10*10*10*2*2*10

=10*10*2√2*3

200√6 cm^2

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