English, asked by allinonegamingshukla, 1 month ago

*एक घनाकार ताल के आधार की लंबाई और चौड़ाई 4.5 मीटर और 6 मीटर है और इसकी ऊंचाई 2 मीटर है। यदि ताल के आधार और चार दीवारों पर टाइलें लगाई जाती हैं, तो टाइलों द्वारा कवर किया गया कुल क्षेत्रफल क्या है?* 1️⃣ 96 मी² 2️⃣ 54 मी² 3️⃣ 69 मी² 4️⃣ 42 मी²*एक वाटर पार्क में 2 पूल हैं, A और B। पूल A एक आयताकार पूल है जो 40 मीटर लंबा, 35 मीटर चौड़ा और 5 मीटर की गहराई वाला है। पूल B एक बेलन के आकार में है जिसकी गहराई 4 मीटर और व्यास 20 मीटर है। इनमें से कौन-सा कथन सही है? (π = 3.14 का प्रयोग कीजिए)* 1️⃣ पूल A की क्षमता पूल B से 5744 सेमी³ अधिक है 2️⃣ पूल B में पूल A से 5744 सेमी³ अधिक क्षमता है 3️⃣ पूल A में पूल B से 1976 सेमी³ अधिक क्षमता है 4️⃣ पूल B की क्षमता पूल A से 1976 सेमी³ अधिक है​

Answers

Answered by ajeetkkyadav023
1

Explanation:

Q.1

l =4.5m

b=6m

h=2m

आधार और चारों दीवारों पर लगी टायल्स का क्षेत्रफल

= l.b+2h.l + 2h.b

= l.b+2h(l+b)

= 4.5×6+2×2(4.5+6)

= 27 + 4×10.5

= 27 + 42.0

= 69 वर्ग मीटर

अतः विकल्प (3) 69 वर्ग मीटर सही है।

Answered by pulakmath007
0

SOLUTION

TO EVALUATE

1. The length and breadth of the base of a cuboidal pool are 4.5 m and 6 m and its height is 2 m. If tiles are fitted to the base and the four walls of the pool, then what is the total area covered by the tiles

1. 96 m²

2. 54 m²

3. 69 m²

4. 42 m²

2. A water park has 2 pools, A and B. Pool A is a rectangular pool that is 40 m long, 35 m wide and has a depth of 5 m. Pool B is in the shape of a cylinder which has a depth of 4 m and a diameter 20 m. Which of these statements is Correct ( Use π = 3.14 )

1. Pool A has more capacity than Pool B by 5744 m³

2. Pool B has more capacity than Pool A by 5744 m³

3. Pool A has more capacity than Pool B by 1976 m³

4. Pool B has more capacity than Pool A by 1976 m³

EVALUATION

ANSWER TO QUESTION : 1

By the given condition

Length = L = 4.5 m

Breadth = B = 6 m

Height = H = 2 m

∴ The total area covered by the tiles

= 2 ( L + B ) × H + ( L × B )

= 2 ( 4.5 + 6 ) × 2 + ( 4.5 × 6 ) m²

= ( 42 + 27 ) m²

= 69 m²

The correct option is

3. 69 m²

ANSWER TO QUESTION : 2

For pool A :

Length = L = 40 m

Width = W = 35 m

Height = H = 5 m

The capacity of pool A

= 40 × 35 × 5 m³

= 7000 m³

For pool B :

Diameter = 20 m

Radius = r = 10 m

Height = h = 4 m

The capacity of pool B

= πr²h m³

= π × 10² × 4 m³

= 400π m³

= 400 × 3.14 m³

= 1256 m³

Thus Pool A has more capacity than Pool B

The difference is

= 7000 m³ - 1256 m³

= 5744 m³

The correct option is

1. Pool A has more capacity than Pool B by 5744 m³

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. A rectangle is made from a 20 cm long thin wire .If the breadth of the rectangle is 3 cm , then what is the length of th...

https://brainly.in/question/34792847

2. Parallelogram and a triangle have a common base. If area of the triangle is 20cm^2 then find area of a parallelogram

https://brainly.in/question/36155817

Similar questions