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Shubh Aditya 3 weeks, 6 days ago

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Yogita Ingle 2 months, 2 weeks ago

<div class="sg-content-box sg-content-box--spaced-bottom"> <div class="brn-answer__text"> <div class="sg-text js-answer-content brn-rich-content" data-test="answer-content">Volume of sphere = 4/3 π R3

Here R = 2r

Volume of sphere = 4/3 π (2r)3


Volume =( 4/3 )8π r3

Volume of sphere = 32/3 π r3</div> </div> </div>
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Shaurya Thanvi 2 months, 2 weeks ago

Given: ABCD is a quadrilateral and M,N,O and P are mid points of AB,BC,CD and AD respectively . To Prove: MNOP os a llgm. Construction: Draw AC and BD. Proof: In triangle ABC, M is the mid-point of AB and N is the mid point of BC. Therefore, MN II AC and MN=1/2 of AC (MPT)...(1) Similarly, In triangle ACD, PO II AC and PO=1/2 of AC (MPT)...(2) Similarly, In triangle ADB, PM II BD and PM=1/2 of BD (MPT)...(3) Similarly, In triangle BCD, ON II BD and ON=1/2 of BD (MPT)...(4) From 1,2,3 and 4 MN II PO and NO II PM Therefore, MNOP is a llgm ( If in a quadrilateral 2 pair of opposite sides are parallel then it is a llgm) H.P.
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Yogita Ingle 3 months ago

Following were the consequences of the Second World War:

Defeat of the Axis Powers - The Axis Powers included the States of Germany, Italy and Japan. They had, in the initial period of war, won phenomenal victories and had pushed the Allied powers to the brink. However, the involvement of the colonial armies and the entry of USA in the war from the side of the Allies proved costly for the Axis powers. After 1941, their fortunes began to reverse and the Allies gained the upper hand. Finally, by 1945, the Axis powers were squarely defeated.

Formation of the UN - The Second World War took place as a result of the failure of the League of Nations. As a result, a meeting of the Big Three - Roosevelt (President of USA), Churchill (Prime Minister of Britain) and Stalin (Premier of the USSR) was held at Yalta in February 1945. They resolved to convene a conference of the representatives of all nations at San Francisco to draw up the ‘Charter of the United Nations’. This led to the formation of the United Nations Organisation on October 24, 1945.

Cold War - Even though the USSR and the USA had fought on one side during the Second World War, as the War ended, the old suspicions and ideological differences came to the fore. Though these two countries never actually went to war against each other, there was a state of extreme political tension between the two. This state of tension in which each bloc adopted policies designed to strengthen itself and weaken the other without armed conflict is known as the Cold War.

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Shreya Saneja 3 months, 1 week ago

The jelly like substance present between the cell membrane and nucleus is called cytoplasm

Yogita Ingle 3 months, 1 week ago

The cytoplasm is the fluid content inside the plasma membrane. It also contains many specialised cell organelles. Each of these organelles performs a specific function for the cell.

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