rstands the concept of radius, center and diamete
directed.
point of radius is at the centre of the circle, the ar
meter of a circle is 5 cm, then its radius is
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0
Answer:
5cm
Step-by-step explanation:
Answered by
0
Answer:
Clearly ZOPT = 90°
Applying Pythagoras in AOPT, we have
OT² = OP2 +PT²
13² = 5² +PT²
PT2 169-25 = 144
PT 12 cm
VO) 4G LTE1 +
Since lengths of tangents drawn from a point to a circle are equal. Therefore,
AP = AE = x(say)
AT PT - AP = (12 - x)cm
Since AB is the tangent to the circleE. Therefore, OE LAB
ZOEA = 90°
ZAET 90º
AT2 = AE² + ET2 [Applying Pythagoras
Theoremin ΔΑΕT]
(12 − x)² = x² + (13 – 5)²
144 - 24x + x² = x² + 64
24x = 80
←
←
10 3 X= cm
Similarly, BE 10 3 cm
10 3 + cm AB = AE + BE = 10 3 cm 20 3
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