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yaroslaw [1]
3 years ago
11

What is 9 + 10? This is hard homework

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
4 0
9 + 10=21 :)
9=3 x3
10= 2 x 5
3x5=15
3x2=6
15 + 6 = 21 :)
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In ​ kite PQRS ​, TQ=5 cm and TR=12 cm. What is SR ? <br><br> Enter your answer in the box.
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The square of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the other two sides.
You can use Pythagoras' Theorem to calculate QR:
a^2 + b^2 = c^2
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This means that the square root of 169cm is QR, which is 13cm.

SR is equal to QR, which means that SR is 13cm.
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