In each group, one word is correctly spelt. Find the

Find the area of triangle having sides in the ratio 4:5:7 & the perimeter of the triangle is 16 cm

Angles of a triangle are in the ratio 5 : 6 : 7. Find the difference between the largest and smallest angle of the triangle.

In a regular polygon, the ratio of the exterior angle to the interior angle is 4:5. Find the interior angle of the polygon.

Two chords AB and CD intersect each other at point 'P' (inside the circle) . If CP = 12 cm, DP = 15 cm and AP = 20 cm, then find BP.

If O is circumcentre of acute angled triangle ABC, if ∠  BAC = 40 ˚  then  ∠ BOC = ?

What will be inradius of an equilateral triangle of side 4 cm?

The volume (in cu.cm.) of a right circular cylinder with radius 1 cm and height 2 cm on is: (Take π = 22/7)

In ΔABC, D is a point on BC such that AD bisects ∠A. If BD = 6 cm, DC = 9 cm, find AB/AC.

AC and CE are the medians of triangle ABD and ACD respectively. If area of triangle ACE is 15 cm ² , then find the area of triangle ABD.

∆ABC and ∆DEF are similar and their areas are respectively 121 cm² and 144 cm ² . If EF = 24 cm BC is?