Question

please answer both...... it's urgent ​

Answer 1

Answer:

a)Option C

b)144°

c)B=104

d)539 minutes

e)option (I)

f)false

g)false

h)6

Step-by-step explanation:

a)The smallest possible decimal fraction upto three decimal places is 0.001

b)The ratio of the angles =1:2:3:4

Let they be x,2x,3x,4x

The sum of all angles in a quadrilateral=360°

=>x+2x+3x+4x=360°

=>10x=360°

=>x=360°/10

=>x=36°

The greatest angle=4x=4×36°=144°

d) given seconds=32340

1 minute =60 seconds

=>32340 seconds=32340/60 minutes

=>539 minutes

e) (11,111) are co primes

because 11 and 111 has only one common factor 1

so their HCF is 1

f) perimeter of the semicircle=πr+2r

Sum of perimeters of two semi circles=

2×(πr+2r)

=>2πr+4r

it is not equal to perimeter of the circle

g) perimeter of square =4×side=4×4=16 units

Perimeters of two squares=16+16=32 units

If we merge them

length of the rectangle=4+4=8 units

breadth=4 units

Perimeter of the rectangle =2(l+b) units

=]2(8+4)

=>2(12)

=>24 units

both are not equal

h)given expression =27xyz

it can be written as=1×3×9×x×y×z

number of factors=6