Question # 3.

a) 20 cm

a2 + b2 = c2

a2=12cm=144cm

b2=16cm=256cm

c2=?=?

144cm+256cm=c2

144cm+256cm=400cm

c2=20cm

400's square root is 20cm.

b) 34 cm

p2 + q2 = r2

p2=16m=256m

q2=30m=900m

r2=?=?

256m+900m=r2

256m+900m=1156m

r2=34cm

1156's square root is 34cm.

Question # 4.

a) 9.2 cm

x2 + y2 = z2

x2=6cm=36cm

y2=7cm=49cm

z2=?=?

49cm + 36cm = z2

49cm + 36cm = 85

z2 = 9.2 cm

85's square root is 9.2 cm.

b) 13.6 cm

b2 + c2 = d2

b2=8cm=64cm

c2=11cm=121cm

d2=?=?

64cm + 121cm = d2

64cm + 121cm = 185cm

d2=13.6cm

185's square root is 13.6 cm.

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## 2 comments:

goodjob Kathleen but i was kind of confused at question 3 because i didn't know the question so you should put that in but than that your scribe was very good.

i agree with kamille on question 3.

and also on question 4.. you lost me there. shouldnt it be like :

a)

x² + y²= z²

6² + 7²= z²

(6x6) + (7x7) = z²

36 + 49 = z²

85 = z²

√85 = √z²

9.2 = z²

kk, i wont put part b, because ill let you do do it yourself part a, was just an example.

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