Question

please tell the answer please ​

Answer 1

Answer:

the correct answer is 0.8 cm

Step-by-step explanation:

The area of square =side × side

so, the area of square with side 4cm =4×4 =16 cm2

area of parrallelogram =base ×height

also , area of square =area of parrallelogram

therefore ,

base × 20 cm =16cm2base =16/20 =0.8 cm

second question

no of rotations made is 200

distance covered is 2200cmso,

distance covered in one rotation =2200/200 =11 cm

this distance covered =circumference of the road roller

circumference of a circle =2πR (π=22/7)

2πR =11 cm

2×22/7 R = 11cm

R = 11×7 / 2×22

= 7 / 4 cm

1.75 cm is the radius

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