mnafihnasar mnafihnasar
  • 22-01-2021
  • Mathematics
contestada

The diameter of a semicircular table is 10 cm. Find the cost of polishing the semicircular table top at ₹ 3.50 per sq.cm

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle
  • 27-01-2021

Answer:

₹ 137.46

Step-by-step explanation:

Here, we want to find a cost

Firstly, we need the area of the semi circular table

The area is by the formula;

A = pi/2 * r^2

Since d = 10

r = d/2 = 10/2 = 5

A is thus;

3.142/2 * 5^2 = 39.275 sq. cm

Cost per sq cm is 3.50

cost of 39.275 sq. cm will be

39.275 * 3.50 = 137.4625

Answer Link

Otras preguntas

Photography is an important aspect of documenting a crime scene. Group of answer choices True False
Which unit would you use to measure the weight of a cell phone?
[tex]\sqrt{x + 7 + 7 = 12[/tex]
= Scientific notation -1.8 x 102 x 3.4 x 103 -6.1x105 6.1x105 1.6х100 1.6х100
Plss answer. I will mark him as brainlest.
WRITE A a paragraph (in not less than 10 sentences) showing correct grammatical construction. What is the best gift that you can give to yourself? Why? Please
9. A train is moving with the velocity of 45 km Ihro The osives applies brace and the train gets stopped in 6 second. Now, calculate as distance covered by the
Identify and describe some ways in which the physical environment can influence the general location and patterns of human settlements.
What is the Ka’aba? an Islamic deity a Muslim pilgrim a book of Sharia laws an ancient stone temple
Analyze this image. How is the focal point emphasized? using converging elements using isolation using contrast using unusual or unexpected subject