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Sagot :
Answer:
17.4
Step-by-step explanation:
got it wrong on delta
a^{2}+(36)^{2}=
a
2
+(36)
2
=
\,\,40^{2}
40
2
Use the Pythagorean Theorem.
a^{2}+1296=
a
2
+1296=
\,\,1600
1600
Simplify.
-1296\phantom{=}
−1296=
\,\,-1296
−1296
Subtract 1296 from both sides.
a^{2}=
a
2
=
\,\,304
304
\sqrt{a^{2}}=
a
2
=
\,\,\pm\sqrt{304}
±
304
Square root both sides.
a=
a=
\,\,17.435595...
17.435595...
Simplify. Ignore negative root, as length must be positive.
a\approx
a≈
\,\,17.4
17.4
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