Question

caleulate the Area of the shaded region​

Answer 1

Answer:

Examples on Simplification

Simplify: 37 - [5 + {28 - (19 - 7)}] Solution: 37 - [5 + {28 - (19 - 7)}] ...

Simplify: 78 - [24 - {16 (5 - 4 - 1)}] Solution: ...

Simplify: 197 - [1/9{42 + (56 - 8 + 9)} +108] Solution: ...

Simplify: 39 – [23 – {29 – (17 – 9 – 3)}] Solution: ...

Simplify: (i) 15 - (-5) {4 - 7 - 3} ÷ [3{5 + (-3) x (-6

Answer 2

Area of shaded region=arΔABC−arΔDBC

arΔABC=

s(s−a)(s−b)(s−c)

s=

2

a+b+c

=

2

122+22+120

=132m

∴arΔABC=

132(132−122)(132−22)(132−120)

=

132×10×110×12

=

11×12×10×10×11×12

=10×11×12=1320m

2