Please help, thank you.

The question is in the picture

C. a= 4, b= 2

Step-by-step explanation:

In a parallelogram, opposite sides are equal.

So, 4a+1 = 2a+9

On solving, we get, a= 4

Similarly, 6b= 11b-10

On solving, we get, b= 2

option C: a=4,b=2

explanation:

opposite sides of a parallelogram are equal so,

QP =RS

6b=11b-10

I. e 6b-11b = -10

I. e. -5b = -10

I. e. - b = -10/2

I. e -b = -2

by removing minus sign from both the sides...

b =2

again opposite sides of a parallelogram are equal so,

QR =PS

4a + 1 = 2a + 9

I. e 4a- 2a = 9 - 1

I. e 2a = 8

I. e a = 8/2

therefore a= 4

so the answer is a=4 and b= 2

24 units

step-by-step explanation:

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice