Question

solve


pls say fast pls say step by step pls ​

Answer 1

Answer:

30m²

Step-by-step explanation:

Using the formulas

A=

s

s

a

s

b

s

c

s=

a

b

c

2

Solving forA

A=

1

4

a

4

2

a

b

2

2

a

c

2

b

4

2

b

c

2

c

4

=

1

4

13

4

2

13

12

2

2

13

5

2

12

4

2

12

5

2

5

4

=

30m²

Answer 2

Answer:

30 m²

Step-by-step explanation:

let side of 13 m be a

side of 12 m be b

side of 5 m be c

↪️semi perimeter (s) =

= a + b + c / 2

= 13 + 12 + 5 / 2

= 30 /2

= 15 m

↪️Heron's Formula

= √ s ( s - a) (s - b) ( s-c)

on putting values

= √ 15 ( 15 - 13) ( 15 - 12) (15- 5)

= √15 × 2 × 3 × 10

= √ 900

= 30 m²

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