Answer:
286
Step-by-step explanation:
multiply 13 by 22.
boom
Answer:
5
Step-by-step explanation:
20000*7=140,000
1.4 * 10 to the 5 power,
So its order of magnitude is 5.
Answer:

Step-by-step explanation:

Answer:
ED = 3.2 cm
Step-by-step explanation:
According to chord-chord power theorem,
(AE)(EB) = (CE)(ED)
2*4 = 2.5 *ED
8/2.5 = ED
ED = 3.2 cm
Answer:
Total walk she did around the pool every morning = 141.3
Step-by-step explanation:
Given - Kriti has a circular swimming pool in her house. The radius of the swimming pool is 22.5 cm. She walks one round every morning before diving in the pool.
To find - How far does she walk around the pool every morning?
Proof -
Given that, the swimming pool is circular in shape.
So,
1 round of circle = Circumference of circle.
As we know that,
Circumference = 
= 
= 141.3
∴ we get
Total walk she did around the pool every morning = 141.3