Question

please answer
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Answer 1

Answer:

Q.(a) if the volume of a cube 4913 cm³

if the length is X cm

So,

X³= 4913

or, X = 17

show the surface area is X²= 17²= 289cm²

(c) the circle area is 154 cm ²

if the radius is r cm

so,

πr²= 154

or, r²= 154× 7/22

or, r²= 49

or; r = √49

or, r= 7

show the circumference of the circle is 2πr= 2× 22/7×7 = 44cm

Q.9.(a)

we know the formula of diagonal of a square is √2× side

√2× side = 5√2

or, side= 5

so, the area of the square is (side)²= (5)²= 25cm²

please make me as a brainliest