In a diagram shown, PQRS is a rectangle XY is parallel to PS RY= 9cm Area of PQRS = 84cm^2 Area of PXYS = 21cm^2 Work out the values of a and b You must show all your working.

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asked Apr 22, 2019 122k views

4 votes

In a diagram shown,

PQRS is a rectangle
XY is parallel to PS
RY= 9cm
Area of PQRS = 84cm^2
Area of PXYS = 21cm^2

Work out the values of a and b
You must show all your working.

In a diagram shown, PQRS is a rectangle XY is parallel to PS RY= 9cm Area of PQRS-example-1

Mathematics
middle-school

Rajkumar Peter asked

by Rajkumar Peter

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2 Answers

4 votes

Answer:

a = 7cm

b = 3cm

Explanation:

84 - 21 = 63cm²

XYRQ = 63cm²

63 / 9 = 7cm

a = 7cm

21 / 7 = 3cm

b = 3cm

Oliva answered Apr 23, 2019

by Oliva

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4 votes

Area of XYRY
=84-21
=63

a*9=63

/9. /9

a=7

b*7=21

/7. /7

b=3

Ricardo Silveira answered Apr 28, 2019

by Ricardo Silveira

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