the radii of two circles are in the ratio of 2:3 and their heights are in the ratio of 7:3 what will be the ratio of their volume?
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Step-by-step explanation:
ANSWER
As radii of two cylinder in in ratio of 2:3
So radius of 1st cylinder=2r
radius of 2st cylinder=3r
heights are in the ratio 5:3.
height of 1st cylinder=5h
height of 2st cylinder=3h
ratio of volume=volume of 1st cylinder/volume of 2nd cylinder
V=Π(2r) ²∗5h/Π(3r) ²∗3h
V=20rh/27rh
V=20/27
Step-by-step explanation:
The Qulliq, a type of oil lamp made by the arctic peoples, are also known as soapstone lamps. This kind of lamp was the single most important article of furniture for the Inuit peoples in their dwellings.
Ancient Egyptian Scarab signet/amulets were most commonly made from glazed steatite.[5]
Soapstone is used for inlaid designs, sculpture, coasters, and kitchen countertops and sinks. The Inuit often used soapstone for traditional carvings. Some Native American tribes and bands make bowls, cooking slabs, and other objects from soapstone; historically, this was particularly common during the Late Archaic archaeological period.[6]
Locally quarried soapstone was used for gravemarkers in 19th century northeast Georgia, US, around Dahlonega, and Cleveland, as simple field stone and "slot and tab" tombs.
Small blocks of soapstone (8" x 10" x 1") were heated on the cookstove or near the fire and used to warm cold bedclothes or to keep hands and feet cozy while sleighing.
Soapstone is relatively abundant in northern Europe. Vikings hewed soapstone directly from the stone face, shaped it into cooking pots, and sold these at home and abroad.[7] In Shetland, there is evidence these vessels were used for processing marine and dairy fats.[8] Several medieval buildings have survived here which are constructed with soapstone, amongst them Nidaros Cathedral.[3]
Soapstone is sometimes used for construction of fireplace surrounds, cladding on wood-burning stoves,[9][10] and as the preferred material for woodburning masonry heaters because it can absorb, store, and evenly radiate heat due to its high density and magnesite (MgCO3) content. It is also used for countertops and bathroom tiling because of the ease of working the material and its property as the "quiet stone". A weathered or aged appearance occurs naturally over time as the patina is enhanced.
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