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GUNJAN

· started a discussion

· 1 Months ago

In question 16, ANGLE XZY should be 90 instead of Angle XYZ.

Question:
X and Y are centres of circles of radii 9 cm and 2 cm respectively, XY = 17 cm. Z is the centre of a circle of radius r cm which touches the above circles externally. Given that \(\angle \)XZY= 90ยบ, the value of r is:
Options:
A) 13 cm
B) 6 cm
C) 9 cm 
D) 8 cm
Solution:

Ans: (b)

Vineet

· commented

· 1 Months ago

sahi hai bhai nahi to answer 15.1 ata hai

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