Question

5) Late entries are not allowed.
(Section-B) Subjective part
Q.1 Solve it:
[5-marks]
a) Find the perimeter of the given figure. (Don't draw the figure)
10 cm
3 cm
17 cm
5 cm
4 cm
5 cm
b) Find the breadth of the rectangle whose length = 20 m and perimeter = is 64 m.​

Answer 1

Answer:

length=20m(given)

perimeter=64m(given)

let length be L

As we know that-

perimeter=2*(L+b)

64=2*(L+20)

64/2=L+20

32=L+20

32-20=L

12=L

now, length=L(L=12)

length=12