Question
The base of a pyramid is an equilateral triangle whose
each side is 10 cm. Its slant edge is 30 cm. What is the total surface area (in cm²) of the pyramid?Solution
In ∆ABC , G is the centroid , AB = 20 cm, BC= 24 cm and AC = 28 cm , find GD, where D is the mid-point of BC?
What will be circumradius of an equilateral triangle of side 6 cm?
If in a ΔABC, AD is internal angle bisector & D is a point on BC, AB = 7 cm, BC = 9cm then what is BD:CD?
If G is the centroid and AD, BE, CF are three medians of ∆ABC with area 108 cm² , then the
area of ∆EFG is?
AB is the diameter of a circle with centre 'O'. PQ is a chord that cuts AB at 'C'. If radius of the circle is 7.5 cm and AC:CB = 3:2, the find the lengt...
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 ?
If I is the incentre of ΔABC , if ∠ BAC = 700 , then what is the measure of ∠ BIC?
- Two circles have radii of 18 cm and 32 cm, and they touch each other externally. What is the length of a common tangent between them?
If G is the centroid and AD, BE, CF are three medians of ∆ABCwith area 24 cm 2 , then the area of ∆CGD is?
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