Gianni ha costruito per sua figlia Nadia un aquilone a forma di deltoide con della stoffa colorata e due listelli lunghi 60 cm e 48 cm . Quanto misura la superficie dell'aquilone?

If the dimensions of a rectangular prism are doubled, how does that affect the surface area and volume?

What is the formula for calculating the surface area of a sphere?

5. 6. रहीम के कमरे की लम्बाई 3.5 मीटर, चौड़ाई 3 मी० तथा ऊँचाई 3 मी० है। इसकी चारों दीवारों पर रु० 1.5 प्रति वर्ग मीटर की दर सफेदी कराने का व्यय ज्ञात कीजिए।

Example 7 What is the smallest number of terms of the geometrical progression, \( 8+24+72+\ldots \), that will give a total greater than 6000000 ?

3. The point, \( (O, O) \), also called the \( x \)-axis and the \( y \)-axis intersect.