Question

write the six elements
A ABC?​

Answer 1

Answer:

A triangle, you have seen, is a simple closed curve made of three line segments. It has three vertices, three sides and three angles. Here is ΔABC (Fig 6.1). It has

Sides: AB ,BC ,CA

Angles: ∠BAC, ∠ABC,∠BCA

Vertices: A, B, C

The side opposite to the vertex A is BC. Can you name the angle opposite to the side AB? You know how to classify triangles based on the

sides and angles.

Based on Sides: Scalene, Isosceles and Equilateral triangles.

Based on Angles: Acute-angled, Obtuse-angled and Right-angled triangles

Answer 2

Answer:

These are called the CHNOPS elements; the letters stand for the chemical abbreviations of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur.