A chord of length 60 cm is at a distance of 16 cm from the centre of a circle. What is the radius (in cm) of the circle?
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The height and the total surface area of a right circular cylinder are 4 cm and 8π sq.cm. respectively. The radius of the base of cylinder is
How many natural numbers between 15 and 85 are divisible by 7?
A man buys 10 oranges for Rs. 3 and sells 8 for Rs. 3. Calculate his gain percent.
If a+b+c=15 and 1a+1b+1c=71abc, then the a3+b3+c3-3abc is
If x - √x = 20; Find the value of √x.
Compute : 4082 / 157 - 23
Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?