Question

5. The area of triangle whose sides are 5 cm, 13 cm and 12 cm is
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Answer 1

Answer:

it is a scalene

Step-by-step explanation:

it is scalene because all three sides are different

area can be found by herons formula:

√s(s-a)(s-b)(s-c)

s=15

s-a=10

s-b=2

s-c=3

√15*10*2*3

√5*3*5*2*2*3

√25*9*4

√100*9

√900

=30cmsquare

Answer 2

Answer:

30 sq.cm

Step-by-step explanation:

Given that, a=5,b=13,c=12

Area = Root over [ p(p-a)(p-b)(p-c) ] (using heron's formula)

where p is half the perimeter

p = ( 5+13+12)/2

= 15

Area = Root over [ 15×10×2×3 ]

= 30 sq.cm

HOPE IT HELPS YOU