Question
A certain amount doubles itself when invested at r% p.a.
simple interest for 10 years. Find the value of r.Solution
Let the principal be Rs. x According to the question, (x × r × 10)/100 = 2x – x Or, r = 10
Angles of a triangle are in the ratio 1 : 2 : 3. Find the measure of the largest angle.
In the given figure, ABC is a right angled triangle. ∠ABC = 90 0and ∠ACB = 60 0. If the radius of the smaller circle is 2 cm...
A triangle ABC is inscribed in a circle with radius 10 cm. The sides of the triangle are AB = 12 cm, BC = 16 cm, and AC = 20 cm. Find the area of the tr...
Two concentric circles of radii 10 cm and 6 cm are given. Find the length of the chord of the larger circle which touches the smaller circle.
Find the area of triangle having sides 28 m, 45 m, and 53 m.
The lengths of three medians in a triangles are 15 cm, 20 cm, 25 cm. What is the area of that traingle (in cm 2 )?
∆ABC and ∆DEF are similar and their areas are respectively 25 cm2 and 36 cm 2 . If EF = 7.2 cm BC is?
If I is the incentre of ΔABC , if ∠BAC = 300 , then what is the measure of ∠BIC?
In a triangle PQR, ST is drawn parallel to side QR. If PS = 8 cm, QS = 5 cm and PT = 14 cm, then find PR.
10 identical solid spherical balls of radius 3 cm are melted to form a single sphere. In this process 20% of solid is wasted. What is the radius (in cm...
