In ∆ABC, ∠A = 90°, AD ⊥ BC and AD = BD = 2 cm. The length of CD is
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If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is
If a+b+c = 6 and ab+bc+ca = 1, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is
Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is
The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age
A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?
The World's largest island is
Who among the following did Gandhiji regard as his political Guru?
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