Question

if p,q ,r ,s are in proportion, then we have
a) p:q : : r:s
b)p:s : : q:r
c)Both a and b
d)q : s : : p:r​

Answer 1

Answer:

b

product of extreme=product of mean

Answer 2

Perimeter of a square, whose area is 144 cm2

, is (

a. 40cm b. 48 cm c. 50 cm d. 96 cm

who answers first gets brainliest

$solution. \\ area \: of \: square = 144cm^{2} \\( side)^{2} = 144cm^{2} \\ side = \sqrt{144cm^{2}} \\ side = 12cm \\ perimeter \: of \: square = 4 \times side \\ = 4 \times 12cm \\ = 48cm \: is \: the \: answer..$

option b is the correct answer...