*If the area of a square-shaped garden is 441 m², then what is the length of the fence required to cover the garden on all four sides?*
1️⃣ 21 m
2️⃣ 84 m
3️⃣ 42 m
4️⃣ 168 m
Answers
Answer:
of wild dogs had gotten into the rubbish bins at
the side of the laboratory and were fighting over the scraps.
4. Marvin unlatched the laboratory's doors and raced outside. Two seconds later, CW bent down and popped
its head through the doorway. Its ultrasonic eyes glowed as it looked around. On its right it could see
Marvin waving his arms at five street dogs. In front, it could see a ridge lined with silhouetted trees and
beyond that a magical sea of twinkling city lights
5. Mesmerised by the lights, CW tore its way through the doors and hurried towards them. Its giant boots
shook the earth with Boom! Boom! each time they came down. They made so much clatter that CW didn't
hear Marvin calling it to come back.
6. CW was past the trees and was moving onto the expressway that flowed to the city. Marvin groaned when
he saw CW elevating three cars, holding them carefully in its hands and start juggling them. Read the following and answer any four questions:
The following is the diagram of an electric motor:
a) Which part of the electric motor in the above figure) can be used as an armature after
some modifications?
(1) POXY
(n) YXOP
(I) ABCD
(iv) ABPQ
Page (4)
b) What are these modifications in the part mentioned above?
1) large number of turns
il) s soft iron core
(1) both large number of turns and a soft iron core
(iv) none of these
Which part in the above diagram is replaced by an electromagnet in order to make a
Commercial motor?
(1) X and Y
(ii) Pando
(im) R
(iv) None of these
d Which part in the above diagram is a device that reverses the direction of flow of
current through a circuit?
1) X and Y
(11) P and Q
(117) R
(iv) None of these
Which part in the above diagramis used as an axle in the electric motor?
6) X and Y
(11) P and q
(in) R
(iv) None of these
Step-by-step explanation:
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Answer:
➪ 84m ✔
Step-by-step explanation:
Given that,
Area of a square-shaped garden is 411m² .
Here, Area of the garden is given, we need to find it's length of the fence required to cover the garden.
Or, the perimeter of the garden.
So,
- We need to find the each side of the garden.
Step 1 :
Finding each side of the garden :
We know that,
Area of a square = (each side)²
But, area of the garden is 411m² (given)
So,
→ 411 = (each side)²
→ √411 = each side
→ 21 = each side.
The each side of the garden we got as 21 cm.
Step 2 :
Finding it's perimeter :
Perimeter of a square is given by :
→ 4 × each side
→ 4 × 21
→ 84cm.
Therefore, perimeter is 84cm.
