geometry questions

Q1. A right angle triangle has an inradius of 6 cm and a circumradius of 25 cm. Find its perimeter in cm
a. 102
b. 112
c. 120
d. 36
e. 47

Q2. A solid wooden toy is in the shape of a right circular cone mounted on base of a hemisphere. If the radius of the hemisphere is 4.2 cm and the total height of the toy is 10.2 cm. Find the volume of the wooden toy?
a. 104
b. 162
c. 427
d. 266
e. 324

Q3. In a triangle with sides of lengths a, b and c , (a + b + c)(a + b - c) = 3ab . The measure of the angle opposite the side of length c is:
a. 15°
b. 30°
c. 45°
d. 60°
e. 120°


Submitted by Incognito on Thu, 2008-07-24 08:54.

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Q2. A solid wooden toy is in the shape of a right circular cone mounted on base of a hemisphere. If the radius of the hemisphere is 4.2 cm and the total height of the toy is 10.2 cm. Find the volume of the wooden toy?
a. 104
b. 162
c. 427
d. 266
e. 324

ans is 266

Little Star