Question

1
(a) The area of a rectangular park 50 m long is 300 m'. Find
the perimeter of the park.

(b) The area of a face of a rubix cube is 36 cm?. Find the length of it
side and perimeter of the face.

Level 3:
QUESTION1:

The cost of fencing a school, which is square in shape, is 2400. Find the area
of the school if the cost of fencing is 40 per meter.

Level 3 Question 5:

Find the approximate crea of the following figure drawn on the graph
sheet. 1 unit on the graph paper has an aree of 1 cm'.

For Level 3 Question 5 Refer the attached pic

Please don't give wrong Answers, and explain the answers detailly​

Answer 1

$Length of rectangle =l=50 m</p><p>Breadth of rectangle =b=?</p><p>Area of rectangle = l×b</p><p>300 sq.cm =50m×b</p><p>50×b=300</p><p>b=50300</p><p>b=6</p><p>$

Answer 2

$\huge \underbrace \mathfrak \red {Answer }$

A) Area=length ×breadth

=>300 =50×breadth

=>breadth=300/50=6

PERIMETER =2(L+b)

=>P=2×(50+6)

=>p=2×56=112

B) area=36cm

Area=side×side

=>area=side square

=>36=side square

=>√36=side

=>side=6cm

C)since cost of fencing is 40Rs per meter

=>total fencing=2400/40=60m

=>perimeter of school =60m

Since school is in a shape of square

=> perimeter =side×4

=>60=side×4

=>side=15m

Question 5:this figure covered almost 10 square units

=>area of figure=10×1 Square

=>10^2 m

${\huge{\sf{\green{\underline {\underline {DONE✔}}}}}}$