Question

NOT TO SCALD 13 cm 25 cm The diagram shows a solid made up of a cylinder and two hemisplieres The dites of the cylinder and the hemispheres is 13 cm The length of the cylinder is 25 cm. (1) One cubic centinetre of the solid has a mass of 23 Calculate the mass of the solid. Give your answer in kilograms​

Answer 1

legth of PQ=8cm

length of OQ = 6cm

PQ is tangent

therefore ∠OQP=90

so by apply pythoguras theorem

we can find OP

OP² =OQ²+PQ ²

OP² =6² +8²

OP=10cm