Answer: 58, 122
Step-by-step explanation:
Answer:
The vertices are A, B, and C. Angle C measures 105°.
Step-by-step explanation:
vertices are the corners of a shape. All the angles of a triangle add up to 180°. congruent just means that two shapes are the same.
X+4-4=15.25-4
X=11.25
Answer would be 1. X=11.25
Answer:
4. 180 degrees
Step-by-step explanation:
The sum of the measures of the interior angles of a triangle is 180 degrees.
This is true of all triangles.
Answer: 4. 180 degrees
Answer:
The sum of first 4n terms is -10n.
Step-by-step explanation:
The formula for sum of n terms of an AP is
It is given that the sum of the first n terms of an A. P. is 2n and the sum of the first 2n terms is n.
..... (1)
..... (2)
Solve equation (1) and (2) by elimination method.
The sum of first 4n terms is
Put the value of a and d.
Therefore the sum of 4n terms is -10n.