Question

A Triangular region of area 54cm2

is divided into four parts by drawing a circle inside it.

The sketch of triangular region is shown

1. Area of a triangle BOC =

a)

2

15

cm

2

b)

2

45

cm

2

c) 54 cm2 d)

3

40

cm

2

2. Length AB =

a)15cm b) 6cm c) 9cm d) 3cm

3. Length AC =

a) 15cm b) 12cm c) 6cm d) 13cm

4. ar (AOB) =

a) 27cm2

b)

2

27

cm

2 c)

3

22

cm

2 d)

2

45

cm

2

5. ar (AOC)=

a) 12cm2

b) 18cm2

c) 9 cm2 d) 21cm2​

Answer 1

Answer:

1. ( a)

2. ( d )

3. ( b )

4. ( a )

5. ( c )

Answer 2

Answer:

a) 45/2 cm

b)9 cm

c)12 cm

d)27/2 cm