Question

1 point 10. In AABC if D and E are the midpoints of BC and AD respectively such that ar (AAEC) = 4 sq. cmthen ar(ABEC) = * O(a) 12 sq. cm O (b) 8 sq. cm O (c) 6 sq. cm O (d) 4 sq. cm
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Answer 1

• Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. It is the building block for everything in our daily lives, including mobile devices, architecture (ancient and modern), art, money, engineering, and even sports.

Answer 2

Answer:

Metal salts commonly used in firework displays include: strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks).