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Start learning 50% faster. Sign in nowSpeed of boat ‘A’ in still water = 150/15 = 10 km/hr Speed of boat ‘B’ in still water = 10 × (1/5) = 2 km/hr Downstream speed of boat ‘B’ = 2 + 3 = 5 km/hr Time taken by boat ‘B’ to cover 60 km in downstream = 60/5 = 12 hours
If I is the incentre of ΔABC , if ∠ BAC = 500 , then what is the measure of ∠ BIC?
A regular polygon has an interior angle of 144°. How many sides does the polygon have?
Find the area of triangle having sides 9 m, 40 m, and 41 m.
Find the area of triangle having sides in the ratio 2:4:5 & the perimeter of the triangle is 22 cm
PQ and PR are the two chords of a circle. The tangents at Q and R meet at A. If ∠QPR = 64°, then the measure of ∠QAR is?
What will be inradius of an equilateral triangle of side 2 cm?
What will be circumradius of a right angle triangle whose base is 9 cm & height is 40 cm ?
In ∆ABC, AD = DB , DE is parallel to BC, and the area of ∆ABC is 20 cm2. What is the area of ∆ADE in cm2 ?
In the given figure, two identical circles of radius 4 cm touch each other. A and B are the centres of the two circles. If RQ is a tangent to the circle...
