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1) Define triangle & its types.
2) Define plane.
3) Solve + 9 = 20
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4) Write the coefficient of x'y in
i) - 7xºyz ii) 8 ab x y
5) Evaluate the expression for x = -2
i) x/y + y/z+z/x
Answers
Answer:
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry.
A scalene triangle has all side lengths of different measures. No side will be equal in length to any of the other sides in such a triangle. In a scalene triangle, all the interior angles are also different. The figure given below illustrates a scalene triangle. You can see how none of the sides is equal in length.
In an isosceles triangle, the lengths of two of the three sides are equal. So, the angles opposite the equal sides are equal to each other. In other words, an isosceles triangle has two equal sides and two equal angles. The figure given below illustrates an isosceles triangle.
In an equilateral triangle, all the lengths of the sides are equal. In such a case, each of the interior angles will have a measure of 60 degrees. Since the angles of an equilateral triangle are same, it is also known as an equiangular triangle. The figure given below illustrates an equilateral triangle.