Proving Triangle Similarity
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Given: QR I PT and QPR NZSTR
Prove: APQR - ATSR
Angles Segments Triangles Statements Reasons
ZQPR
ZORP
ZSRT
ZSTR
Statements
Reasons
Assemble the proof by dragging tiles to
the Statements and Reasons columns.
Intro

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

10+4√2 is the answer. i dont have the time to explain.