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Let the speed of boat in still water =B and speed of stream =S then – ATQ- B-S= 2km/h … (1) B+S=1/10 km/minutes B+S=6 km/h Solving (1) +(2) 2B=3+6=8 B=8/2=4km/h Take the time cover 5 km in still water = 5/4 =5/4 h.
If I is the incentre of ΔABC , if ∠ BIC = 1250 , then what is the measure of ∠ BAC?
What will be inradius of an equilateral triangle of side 12 cm?
If I is the incentre of ΔABC , if ∠ BIC = 112.5° , then what is the measure of ∠ BAC?
Find the area of triangle having sides 7 m, 24 m, and 25 m.
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find out the value of cos A?
If the area of ∆ ABC is 33 cm2 & G is the centroid of ∆ ABC.then the area of the ∆ BGC?
A circular clock has the hour hand of length 42 cm. Find the length of the distance it covers by its tip from 11 p.m. to 3 a.m.
If angle between two sides of 3 cm & 2 cm of a triangle is 30°. what is the area of the triangle ?
If O is circumcentre of acute angled triangle ABC, if ∠ BOC = 100˚ then ∠ BAC = ?
In a triangle ABC, AB = 13 cm, BC = 14 cm, and AC = 15 cm. Find the area of the triangle and the length of the altitude from vertex A to side BC.
