PQ and RS are two chords of a circle with centre O. The perpendiculars drawn from O to PQ and RS are OX and OY respectively. Sho
w that PQ² - RS² = 4OY - 4OX.
2 answers:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Radii PO and RO will be called r
Pythagorean theorem
r² = PX² + OX²
r² = RY² + OY²
PX² + OX² = RY² + OY²
PX² - RY² = OY² - OX²
similar triangles based on diameters rather than radii
(2PX)² - (2RY)² = (2OY)² - (2OX)²
PQ² - RS² = 4OY² - 4OX²
Going by the picture provided rather than your posted question which is missing a couple of squaring exponents on the right hand terms.
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Answer:
One side has length 5x
One side has length 12x
One side has length 13x
Step-by-step explanation:
5x + 12x + 13x = 15
x = 15/(5 + 12 + 13) = 15/30 = 0.5
5(0.5) = 2.5
12(0.5) = 6
13(0.5) = 6.5
The answer is: " 250 % " .
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Answer:
The answer is a. hope this helps :)
Step-by-step explanation:
The angles would be 45° and 60°
I attached my working in an image but if you have any questions let me know!
I hope this helps!
It's 160940 because you move the decimal point 5 places to the right
