Question

right angles
2 71
*105 per m2
each tile costs 27.
A rectangular plot of land is 50 m wide. The cost of
18 per metre is 4680. Find
the plot.
rectangular park of length 70 m and breadth 45 m and p
the area of the roads. Also find the cost of constructing
3. A rectangular room is 10 m long and 75 m wide. Fine
floor with carpet 1.25 m wide at 250 per metre.
Find the cost of flooring a room 6.5 m by 5 m with so
the rate of 9.40 per tile.
The floor of a room is in the shape of a square of si
covered with square tiles of perimeter 1.2 m. Find th=​

Answer 1

The width of street is 8.2 m.

Step-by-step explanation:

We are given that the two buildings are parallel to each other

Refer the attached figure .

So, AB is parallel to ED

Since we are given that a ladder 5.8m long is placed on the street such that its top just reaches the window of a building at the height of 4m

So. AC = EC = 5.8 m

And AB = 4 m.

On turning the ladder over to the other side of the street its top touches the window of the other building at a height of 4.2m.

So, ED = 4.2 m

So, let BC = x and CD = y

We are required to calculate the width of street i.e. x+y

So, in ΔABC , use Pythagorean Theorem

So, in ΔEDC , use Pythagorean Theorem

So, the width of street = x+y = 4.2+4 =8.2 m

Hence the width of street is 8.2 m.