Question
A right circular cone has a base
area of 154 cm² and a slant height of 25 cm. What is the volume of the cone?Solution
ATQ,
The base area of the cone is given by the formula: π × radius² So, π × (radius of the cone)² = 154 Thus, (radius of the cone)² = 154 × (7/22) = 49 This means the radius of the cone = √49 = 7 cm We know that (slant height)² = (radius)² + (height)² Therefore, (height)² = 25² – 7² = 625 – 49 = 576 So, the height of the cone = √576 = 24 cm Now, the volume of the cone = (1/3) × π × radius² × height = (1/3) × (22/7) × 49 × 24 = 1232 cm³
Which of the phrases a, b, c, and d given below in each sentence should replace the word/phrase printed in bold in the sentence to make it grammatical...
When the Congress Government tried to introduce a 10% quota for the poorer amid the general category , the Supreme Court struck it down, saying there i...
Directions: In the questions, a part of the sentence is highlighted. Below are given alternatives that may improve the sentence. Choose the correct alt...
Any of these two options could be the correct answer.
She was very excited about the trip, but she has to cancel it due to unforeseen circumstances.
Select the most appropriate phrase to replace the underlined phrase in the given sentence to make it grammatically correct. Select 'No correction requi...
Select the most appropriate option to substitute the bold segment in the given sentence. If there is no need to substitute,select no improvement/no sub...
 My student, a doctor by profession, preferring to walk to the hospital everyday.Â
None only did the men aid in the work, but the women also did their part.
- In the question given below, there is a sentence in which one part is given in bold. The part given in bold may or may not be grammatically correct. Choose...
Relevant for Exams:
