Question

8. State whether the given pairs of triangles are similar or not. In case of similarity mention the
criterion​

Answer 1

Answer:

a)

in ∆ABO

H²=P²+B²

16²=P²+9²

256-81=P²

P²=175

P=√175

in∆OCD

9²=5²+DC²

DC²=81-25

DC=√56

in ∆ABO and OCD

16/9≠9/5≠√175/√56

not similar because ratio of their corresponding sides are not equal

but if you take approximate value then it is similar

b)

in∆PQR

P+Q+R=180

45+78+R=180

R=180-123

R=57⁰

in ∆MLN

45+57+N=180

102+N=180⁰

N=180⁰-102⁰

N=78⁰

so

angle P=M=45⁰

Q=N=78⁰

R=L=57⁰

so∆PQR similar ∆MNL

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Answer 2

Answer:

hi

Step-by-step explanation:

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