1. In an isosceles ?ABC, AD is the median to the unequal side meeting BC at D. DP is the angle disector of ?ADB and PQ is drawn parallel to BC meeting AC at Q. Then the measure of ?PDQ is
4. ? DEF and ? GHI are similar triangles. Length of AB is 10 cm and length of the corresponding side DE is 6 cm. What is the ratio of Perimeter of ?ABC to ?DEF?
7. A wooden bowl is in shape of a hollow hemisphere of internal radius 7 cm and thickness 1 cm. What is the total surface area (in sq.cm) of the bowl? (Take: = 22/7)