Question

①Find the area of the triangles given below:-​

Answer 1

Answer :-

1.

• a = 11
• b = 13
• c = 8

S = a + b + c/2

→ 11 + 13 + 8 /2

→ 32/2

→ 16

Area of the traingle :

√ s (s - a) (s - b) (s - c)

→ √ 16 (16 - 11) (16 - 13) (16 - 8)

→ √ 16 × 5 × 3 × 8

→ √1920

→ √ 43.8 cm²

2.

• a = 120
• b = 80
• c = 50

S = a + b + c/2

→ 120 + 80 + 50 /2

→ 250/2

→ 125

Area of the triangle :

√ s (s - a) (s - b) (s - c)

→ √ 125 (125 - 120) (125 - 80) (125 - 50)

→ √ 125 × 5 × 45 × 75

→ √ 2109375

→ 1452.36 cm²

Answer 2

Answer:

figure 1)

1/2 *11*8

11*4

44 cm ^2

figure 2)

1/2*80*50

40*50

20000 cm^2