Skip to main content

Class 10 Maths Chapter 12 Areas Related to Circles Ex 12.1

Question 1.
The radii of the two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles.
Solution:
Ex 12.1 Class 10 Maths NCERT Solutions PDF Q1
Question 2.
The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles.
Solution:
Exercise 12.1 Class 10 Maths NCERT Solutions PDF Q2

Question 3.
The given figure depicts an archery target marked with its five scoring regions from the center outwards as Gold, Red, Blue, Black, and White.
NCERT Solutions for Class 10 Maths Chapter 12 PDF Areas Related To Circles Ex 12.1
The diameter of the region representing Gold score is 21 cm and each of the other bands is 10.5 cm wide. Find the area of each of the five scoring regions.
Solution:
Exercise 12.1 Class 10 Maths NCERT Solutions PDF Q3
Exercise 12.1 Class 10 Maths NCERT Solutions PDF Q3.1

Question 4.
The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour?
Solution:
Ch 12 Maths Class 10 NCERT Solutions Ex 12.1 PDF Q4
Question 5.
Tick the correct answer in the following and justify your choice: If the perimeter and the area of a circle are numerically equal, then the radius of the circle is
(a) 2 units
(b) n units
(c) 4 units
(d) 7 units
Solution:
Ex 12.1 Class 10 Maths NCERT Solutions PDF Q5

Comments

Post a Comment

Popular posts from this blog

Grammar Exercise - Tag Questions

She is collecting stickers, isn't she? We often watch TV in the afternoon, don't we? You have cleaned your bike, haven't you? John and Max don't like maths, do they? Peter played handball yesterday, didn't he? They are going home from school, aren't they? Mary didn't do her homework last Monday, did she? He could have bought a new car, couldn't he? Kevin will come tonight, won't he? I'm clever, aren't I? Choose the correct word. They're working on the project, aren't they? It wasn't my fault was it? Bill got what he wanted, didn't he? It won't be hard to convince her, will it? We can't leave him alone, can we? We've done our job, haven't we? You should apologize for what you have done, shouldn't you? They didn't start at two o'clock, did they? They finish work at five o'clock, don't they ? She doesn't like him, does she ? Difficult Question Tags Exercises
Post a Comment
Read more

VERB AND FORMS OF VERB WITH HINDI MEANING_List of Verb in hindi

Verbs What is a verb? Verbs are the action words in a sentence that describe what the subject is doing. Along with nouns, verbs are the main part of a sentence or phrase, telling a story about what is taking place.     Verbs are words that express action or state of being. There are three types of verbs:  action verbs, linking verbs, and helping verbs .  Action verbs are words that express action (give, eat, walk, etc.) or possession (have, own, etc.). Action verbs can be either transitive or intransitive. List of Verb in hindi Present Hindi Meaning   Past Past Participle Buy खरीदना Bought Bought Build बांधना Built Built burn जलना Burnt Burnt Bend झुकना Bent Bent Bring लाना brought brought Become होना Became Become Come आना Came Come Catch पकड़ना Caught Caught Do करना Did Done Dream ख्वाब देखना Dreamt Dreamt Arise उठना / जागना Arose Arisen Be होना Was, were Been Bear सहन करना Bore Bore Beat मारना Beat Beat Bite काटना Bit Bitten Break तोडना Broke Broken Choose चुनना Chose Chosen Draw चि
Post a Comment
Read more

Synonym-Antonym list with Hindi Meaning

S.No Word शब्द Synonym Antonym 1 Abate रोक-थाम करना moderate, decrease aggravate, supplement 2 Abject अधम despicable, servile, commendable, praiseworthy 3 Abjure त्यागना forsake, renounce, approve, sanction 4 Abortive निष्फल vain, unproductive, effectual productive 5 Absolve दोषमुक्त करना pardon, forgive , compel, accuse 6 Accord सहमति agreement, harmony , disagreement, discord 7 Acrimony रूखापन harshness, bitterness, courtesy, benevolence 8 Adamant अटल stubborn, inflexible , flexible, soft 9 Adherent पक्षपाती follower, disciple , rival, adversary 10 Adjunct सहायक joined, added , separated, subtracted 11 Admonish धिक्कारना counsel, reprove , approve, applaud 12 Adversity विपत्ति misfortune, calamity , prosperity, fortune 13 Alien विदेशी foreigner, outsider , native, resident 14 Allay निराकरणकरना pacify, soothe , aggravate, excite 15 Alleviate कम करना abate, relieve , aggrava
Post a Comment
Read more