Question

please solve this and sumit by 12 30​

Answer 1

Answer:

Ans) 1) Perimeter of rectangle = 2(L+B)

P = 2(70+25.5)

P = 2 × 95.5

P = 191 m

By your text, the answer is (a) 191 cm.

2) Perimeter of square = 4 × side

P = 4 × 7.9

P = 31.6 cm

By your text, the answer is (b) 31.6 cm.

3) Circumference of circle = 2πr/πd

C = 22/7×56

C = 176 cm

By your text, the answer is (a) 176 cm.

4) Circumference of circle = 2πr

66 = 2×22/7×r

66 = 44/7×r

66×7/44 = r

462/44 = r

10.5 cm = r

By your text, the answer is (c) 10.5 cm.

5) Area of square = Side×Side / L×L

A = 3.5 × 3.5

A = 12.25 m²

By your text, the answer is (c) 12.25 m².

Answer 2

Answer:

1) 191,2) 31.6,3) 176,4) 10.5CM,5) 12.25M^2

Step-by-step explanation:

1)length= 70m,breadth=25 1/2=50/2m

perimeter of a rectangle=2(l+b)

=2(70+51/2)

=2(140+51/2)

=2(191/2)

2 and 2 cancellation

remaining answer 191m

2))) perimeter of the square=4S

= 4×7.9

=31.6

5)Area of square=a^2

a=3.5m

=3.5m×3.5m

=12.25m^2

3)d=r/2,

r =56/2

r =28.

Circumference of circle=2πr

=2×22/7×28

=2×22×4

=176cm

4))r=2πr

=2×22/7×r=66

r=66×7/22×2

= 21/2

=10.5CM